Supporting Oxygen Needs

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Questions and Answers

Why is oxygen considered a basic need for life?

  • It maintains skin elasticity.
  • It strengthens bones.
  • It helps in digestion of food.
  • It is crucial for the proper function of body cells; without it, brain damage and serious illnesses can occur quickly. (correct)

A client's care plan specifies assistance with oxygen. What is the scope of practice for a PSW in this situation?

  • Evaluate the effectiveness of the oxygen therapy.
  • Administer oxygen as needed.
  • Assist with oxygen, ensuring to never adjust the oxygen levels. (correct)
  • Adjust the oxygen level based on the client's reported comfort.

What are the three essential processes involved in respiratory function?

  • Digestion, absorption, and excretion.
  • Contraction, extension, and rotation.
  • Air moving into and out of the lungs, exchange of O2 and CO2 at the alveoli, and blood transporting O2 and CO2. (correct)
  • Filtration, reabsorption, and secretion.

Which of the following describes the importance of carbon dioxide excretion in the body?

<p>The inability to excrete carbon dioxide causes death. (B)</p> Signup and view all the answers

Which factor directly impacts the respiratory system's ability to function effectively?

<p>An open airway and adequate number of alveoli. (B)</p> Signup and view all the answers

The circulatory system relies on which component to effectively transport oxygen?

<p>Red blood cells and hemoglobin. (D)</p> Signup and view all the answers

How does the nervous system impact oxygenation?

<p>It controls respiratory muscles and sends signals for breathing. (C)</p> Signup and view all the answers

How does aging potentially affect oxygen needs?

<p>Weakened muscles, less elastic lungs, and difficulty coughing. (B)</p> Signup and view all the answers

Why do oxygen needs typically increase during a fever?

<p>The body works harder to fight infection. (C)</p> Signup and view all the answers

How might chest or abdominal surgery impact a client's oxygen needs?

<p>Difficulty with deep breathing due to pain. (D)</p> Signup and view all the answers

Why is adequate nutrition important for oxygenation?

<p>It is necessary for red blood cell production. (C)</p> Signup and view all the answers

What is a potential impact of smoking on oxygenation?

<p>It can damage lung tissue, potentially leading to lung cancer and COPD. (D)</p> Signup and view all the answers

How can allergies affect a person's respiratory function?

<p>They can cause swelling of the upper airway, leading to conditions like asthma. (C)</p> Signup and view all the answers

What is a sign or symptom of altered respiratory function?

<p>Shortness of breath (SOB). (A)</p> Signup and view all the answers

What does 'short of breath on exertion' (SOBOE) indicate?

<p>Breathing difficulty during physical activity. (D)</p> Signup and view all the answers

What term describes when a client needs to sit up in bed or a chair to breathe comfortably?

<p>Orthopnea (C)</p> Signup and view all the answers

Which observation would be considered an abnormal breathing pattern?

<p>Wheezing or gurgling. (D)</p> Signup and view all the answers

What does cyanosis indicate?

<p>Low oxygen levels in the blood. (D)</p> Signup and view all the answers

What is the definition of tachypnea?

<p>Rapid breathing. (A)</p> Signup and view all the answers

What characterizes Kussmaul respirations?

<p>Deep and rapid respirations. (A)</p> Signup and view all the answers

Which of the following defines hypoxia?

<p>Deficiency of oxygen in the cells. (B)</p> Signup and view all the answers

Which of the following is an early sign of hypoxia?

<p>Restlessness (A)</p> Signup and view all the answers

How can pain interfere with adequate oxygenation?

<p>By causing shallow breathing and reduced coughing. (D)</p> Signup and view all the answers

What is the primary reason for frequent position changes for clients regarding oxygenation?

<p>To ensure skin integrity and lung expansion. (A)</p> Signup and view all the answers

What is the purpose of deep breathing and coughing exercises?

<p>To move air into most parts of the lungs and remove mucus. (C)</p> Signup and view all the answers

What condition can deep breathing and coughing exercises help prevent?

<p>Atelectasis (A)</p> Signup and view all the answers

What is the goal of incentive spirometry?

<p>To improve lung function. (B)</p> Signup and view all the answers

What is the PSW's role in assisting with incentive spirometry?

<p>Providing instructions as per the care plan or supervisor. (C)</p> Signup and view all the answers

What is the main reason oxygen is treated as a drug?

<p>Because it can have harmful effects if not administered properly. (C)</p> Signup and view all the answers

Which statement is true regarding a PSW's role in oxygen therapy?

<p>PSWs assist the nurse in providing safe care, but do not administer oxygen. (C)</p> Signup and view all the answers

An oxygen concentrator works by:

<p>Filtering oxygen from the air in the room. (B)</p> Signup and view all the answers

What should a PSW do if they observe that a client's oxygen flow rate is incorrect?

<p>Tell the supervisor at once. (B)</p> Signup and view all the answers

Why is it important to add distilled water to the humidifier in an oxygen setup?

<p>To prevent the oxygen from drying the airway's mucous membranes. (A)</p> Signup and view all the answers

What is sputum?

<p>Mucus from the respiratory system. (A)</p> Signup and view all the answers

Why should a client avoid using mouthwash prior to collecting a sputum specimen?

<p>The mouthwash can interfere with the test results. (B)</p> Signup and view all the answers

For what purpose are artificial airways used?

<p>To keep the airway open. (D)</p> Signup and view all the answers

What is the meaning of 'intubation'?

<p>Inserting an artificial airway. (B)</p> Signup and view all the answers

What should a PSW do immediately if a client's artificial airway comes out?

<p>Tell the nurse at once. (B)</p> Signup and view all the answers

What is the function of the obturator in a tracheostomy tube?

<p>To guide the insertion of the outer cannula. (A)</p> Signup and view all the answers

What does it mean for a tracheostomy tube to remain 'patent'?

<p>It is free from obstruction. (A)</p> Signup and view all the answers

Flashcards

What is Oxygen (O2)?

The most important basic need for life. Brain damage and serious illnesses can occur quickly without enough of it.

Respiratory function

The three processes are air moving into and out of the lungs, O2 and CO2 exchange at the alveoli, and blood carrying O2.

Why is Oxygen (O2) needed?

Cells, tissues, and organs need this to survive; otherwise, they die.

What affects oxygenation?

If any of the body's system is not working properly, it can affect this.

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Respiratory/Circulatory functions

Airway open, adequate alveoli, blood cell count, hemoglobin to carry oxygen and bone marrow to produce RBCs.

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Factors affecting oxygen needs?

Aging, exercise, fever, pain, nutrition, drugs, smoking, allergies, pollutant exposure and alcohol.

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Signs/symptoms of altered respiratory function

Shortness of breath that can be acute or chronic. Clients may want to sit up as it is difficult to breathe lying flat.

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What is tachypnea?

An abnormal breathing pattern.

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What is apnea?

Lack or absence of breathing.

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What is Dyspnea?

Difficult, labored, or painful breathing.

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What is Hypoxia?

When cells do not have enough oxygen so they cannot function properly.

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What are alveoli?

To get enough oxygen, air must reach this place where O2 and CO2 are exchanged.

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What prevents air from reaching the alveoli?

Disease, pain, immobility, and narcotics can prevent air getting here.

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What are semi-Fowler's and Fowler's positions?

Breathing is usually easier in these positions.

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Clients with difficulty breathing.

These clients often prefer the orthopneic position.

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What is deep breathing and coughing?

Deep breathing moves air into most parts of the lungs and coughing removes mucus.

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What is atelectasis?

Postsurgical period, bed rest, lung disease, and paralysis are factors for this.

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What is Incentrive Spirometry?

It measures the amount of air inhaled and gives the client a visual to improve lung function.

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What is Oxygen?

Some clients need it constantly; others need it for symptom relief. Support workers do not give it and you assist the nurse in providing safe care.

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What are Oxygen Sources?

Three main delivery systems are oxygen concentrators, oxygen cylinders, and liquid oxygen systems.

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What is a liquid oxygen system?

The liquid oxygen is filled from a stationary container, and the portable unit can be worn over the shoulder.

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What is an oxygen concentrator?

The machine filters oxygen from the air in the room, and it is plugged into a grounded electrical outlet.

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Oxygen Therapy

You assist with oxygen therapy, but you do not administer oxygen.

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What is Oxygen?

Keep it away from heat and open flame. It is the physician, nurse, or respiratory therapist responsibility for teaching safety.

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Oxygen Administration?

Most commonly delivered by nasal cannula and masks.

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What is the O2 flow rate?

Is the amount of oxygen given and measured in liters per minute (L/min.).

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What is Sputum?

Mucus from the respiratory system; not saliva (spit).

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Artificial Airways.

They are needed when disease, injury, secretions, or aspiration obstruct the airway.

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What is oro-pharyngeal airway.

Inserted by through the mouth into the pharynx.

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What is a tracheostomy tube.

Inserted through a surgically created opening into the trachea.

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Client with Artificial Airway.

Vital signs are checked often. Observe for hypoxia and other signs and symptoms.

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Tracheostomy tube has 3 parts.

Consist of an obturator to guide insertion of the outer cannula, inner cannula (locked into place) and an outer cannula (not removed).

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Tracheostomy care involes:

Cleaning the inner cannula to remove mucus, cleaning the stoma to prevent infection and applying clean ties or a Velcro collar to prevent infection.

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Tracheostomy care:

Call for the nurse or supervisor if you note signs and symptoms of hypoxia or respiratory distress or the outer cannula comes out.

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Retained secretions

Obstruct air flow, provide an environment for microbes, interfere with oxygen/ carbon dioxide exchange and cause hypoxia.

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What is Suction?

Withdrawing or sucking up fluid (secretions).

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Suctioning Sites

Nose and mouth can be used to suction the airway.

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Harm of Suctioning

If the client's lungs are not breathing during suctioning, hypoxia and life threatening complications can arise.

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What is Mechanical ventilation?

Using a machine to move air into and out of the lungs.

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Airtight

Chest tubes attach to a drainage system, the system must be airtight, and water-seal drainage keeps the system airtight.

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Study Notes

    • Oxygen is a basic life need.
    • Brain damage and serious illnesses can occur quickly if there is insufficient oxygen.
    • PSWs assist but do not "give" oxygen.
    • The oxygen level should not be adjusted.

    Supporting Oxygen Needs Task Considerations

    • To support a client's O2 needs, it must be allowed in a PSW's province or territory.
    • The task must be within the job description.
    • PSW's must have the necessary training and know how to use the equipment.
    • The task must be reviewed with a nurse.
    • A nurse or technician must supervise the task.

    Altered Respiratory Function Processes

    • Involves air moving into and out of the lungs.
    • Oxygen and CO2 are exchanged at the alveoli.
    • Blood carries oxygen to cells and removes carbon dioxide.
    • Cells, tissues, and organs die without oxygen (O2).
    • The inability to excrete carbon dioxide (CO2) leads to death.
    • The respiratory and cardiovascular systems work together to deliver oxygen and excrete carbon dioxide.
    • Proper oxygenation and carbon dioxide excretion requires both systems to function optimally.
    • A malfunction in any body system can impact oxygenation since all body systems work together.

    Factors Affecting Oxygen Needs

    • Respiratory system function relies on an open airway.
    • Respiratory system function requires an adequate number of alveoli, necessary to absorb oxygen and excrete carbon dioxide.
    • Circulatory system function depends on red blood cell count.
    • Circulatory system function requires hemoglobin to pick up and carry oxygen.
    • Circulatory system requires bone marrow to produce RBC's.
    • Examples of possible respiratory issues: asthma, and upper respiratory infections
    • Examples of possible circulatory issues: iron deficiency, anemia, blood loss, cancers of the blood
    • Nervous system function is affected by disease or injury to respiratory muscles.
    • Brain deterioration can affect signals to the rest of the body to breathe.
    • Some illnesses asstroke, ALS, and multiple sclerosis can cause nervous system dysfunction.
    • Muscles weaken, lungs become less elastic with age causing difficulty coughing.
    • Exercise requires more oxygen.
    • Fever increases oxygen needs, as the body works harder to fight infection.
    • Pain increases oxygen needs, chest or abdominal surgery can make it difficult.
    • Good nutrition is necessary to produce RBCs.
    • Certain drugs such as morphine and narcotics depress the respiratory center or cause respiratory arrest.
    • People with substance abuse problems are at risk for respiratory depression or arrest
    • Smoking can damage lung tissue, which leads to lung cancer and COPD.
    • Allergies Swelling of upper airway can result in chronic bronchitis, asthma, and death.
    • Pollutant exposure damages lungs.
    • Alcohol depresses the cough reflex, and increases risk of aspiration.

    Signs and Symptoms of Altered Respiratory Function

    • Shortness of breath (SOB) can be acute or chronic.
    • Clients may feel anxious or panic, when they can't breathe.
    • Struggling to breathe can be exhausting.
    • Shortness of breath on exertion (SOBOE) can occur.
    • "On exertion" means with activity, which is different from SOB at rest.
    • Client may prefer to sit up in bed or chair, since it is difficult to breathe when lying flat (orthopnea).

    Observable Signs and Symptoms

    • Notice any abnormal breathing pattern.
    • Note the frequency of cough.
    • Note whether a cough is productive or non-productive.
    • Observe the colour, odour, and consistency of sputum. Note if there is any blood (hemoptysis).
    • Listen for noisy respirations such as wheezing and gurgling.
    • Be aware of any chest pain.
    • Look for cyanosis or a grey/pale hue in the skin. Can be seen in lips, nail beds, skin, mucous membranes
    • Monitor for increased heart and respiratory rate. And decreased SpO2
    • Observe the body position of client who wants to sit up and forward as body's effort to expand chest.

    Abnormal Respiratory Patterns

    • Tachypnea = rapid breathing, with respiration more than 24 per minute.
    • Bradypnea = slow breathing, with respiration fewer than 12 per minute.
    • Apnea = lack or absence of breathing.
    • Sleep apnea and periodic apnea of newborns are other types of apnea.
    • Kussmaul respirations = deep and rapid respirations, that are characteristic of diabetic acidosis
    • Hypoventilation = slow, shallow, and sometimes irregular breaths.
    • Hyperventilation = respirations are rapid and deeper than normal
    • Dyspnea = Difficult, labored, or painful breathing
    • Cheyne-Stokes = Respirations gradually increase in rate and depth and then become shallow and slow.
    • Breathing may stop for 10 to 20 seconds with Cheyne-Stokes.
    • Cheyne-Stokes respirations are common when death is near.
    • Orthopnea = breathing deeply and comfortably only when sitting.

    Hypoxia

    • Hypoxia is a deficiency of oxygen in the cells that stops them from functioning properly.
    • Any factor that affects respiratory function can cause hypoxia.
    • The brain is very sensitive to inadequate oxygen supply.
    • Early signs of hypoxia include restlessness, dizziness, and disorientation. These signs are easy to miss and confuse with aging or dementia.
    • Hypoxia is life threatening and the signs and symptoms must be reported immediately.

    Promoting Oxygenation

    • To get enough oxygen, air must reach the alveoli to exchange O2 and CO2.
    • Disease and injury can prevent air from reaching the alveoli, and can be prevented with deep breathing and coughing.
    • Pain and immobility interfere with deep breathing and coughing.
    • Narcotics can interfere with deep breathing and coughing.
    • Care plan will outline measures to promote oxygenation.

    Positioning

    • Breathing is easier in semi-Fowler's and Fowler's positions.
    • Clients with difficulty breathing often prefer the orthopneic position.
    • Unless there are positioning restrictions, the client should never lie on one side for long periods.
    • Frequent position changes are needed at least every 2 hours.

    Deep Breathing and Coughing

    • Deep breathing moves air into most parts of the lungs.
    • Coughing removes mucus.
    • Deep breathing and coughing help prevent pneumonia and atelectasis (lung collapses).
    • Clients may be reluctant to do exercises as painful after injury or surgery, or be afraid of breaking open an incision.
    • The postsurgical period, bed rest, lung disease, and paralysis are factors for atelectasis
    • Deep breathing and coughing may be done every 1-2 hours or four times a day, as ordered.

    Incentive spirometry

    • Is a machine that measures the amount of air inhaled.
    • It is also known as sustained maximal inspiration [SMI].
    • Incentive spirometry provides a visual guide for the client with a goal to improve lung function.
    • The client takes slow, deep breath until the balls rise to the desired height.
    • The client hold his breath for at least 3 seconds, and exhales slowly.
    • The client's care plan or supervisor gives instructions about how often the client should use it, the desired height, and the number of breaths needed.

    Assisting with Oxygen Therapy

    • Oxygen is treated as a drug because some clients need oxygen constantly, and others need it for symptom relief.
    • Support workers do not give oxygen.
    • You assist the nurse in providing safe care.
    • PSW's may be trained to transfer oxygen or provide oral suction.

    Oxygen sources:

    • There are 3 main delivery systems:
    • Oxygen concentrator which filters oxygen from the air in the room. It is plugged into a grounded electrical outlet.
    • Oxygen cylinder that contains compressed oxygen. The oxygen tank is placed at the bedside.
    • Liquid oxygen system uses a portable unit filled from a stationary container which unit can be worn over the shoulder.
    • Oxygen is piped directly into a person's unit through a wall oxygen outlet in hospitals and some continuing care facilities.

    Oxygen therapy

    • ASSIST with oxygen therapy.
    • Do not administer oxygen.
    • Give safe care to clients receiving oxygen by following safety guidelines.

    Oxygen and Fire Safety

    • Keep oxygen source away from heat and open flame because oxygen is flammable.
    • Physician, nurse, and respiratory therapist are responsible for teaching client and family members about oxygen safety.
    • Warn client of dangers and the safety hazard, and report concerns to supervisor.

    Oxygen Administration Devices

    • Oxygen can be delivered by nasal cannula, simple face mask, partial-rebreather mask, non-rebreather mask, and Venturi mask.
    • Moisture can build up under the mask so face should be cleaned and dried.
    • Mask can easily cause skin breakdown so face must be cleaned and dried.
    • Masks are typically removed for eating, where oxygen is given by the cannula during meals.
    • Masks are sometimes changed from masks to nasal cannula

    Oxygen Administration Set-up

    • If oxygen is not humidified, it will dry the airway's mucous membranes.
    • Distilled water is often added to the humidifier.

    Oxygen Flow Rates

    • The flow rate is the amount of oxygen given, measured in liters per minute (L/min).
    • The doctor orders the flow rate or orders a range for the nurse to adjust according to the patient's condition.
    • The nurse or respiratory therapist sets the flow rate.
    • The nurse and care plan will tell you the person's flow rate.
    • Your role is to know the flow rate that is ordered and check that the flow rate is correct.
    • Tell the supervisor at once if the flow rate is too high or too low, and a nurse or respiratory therapist will adjust the flow rate.

    Collecting Sputum Specimens

    • Sputum is mucus from the respiratory system, not saliva (spit).
    • Sputum is studied for blood microbes and abnormal cells.
    • The client will have to cough up sputum from the bronchi and trachea which can be painful or hard to do.
    • The specimen should be collected in the morning.
    • Instruct the client not to use mouthwash prior to the procedure.
    • Acknowledge that the procedure can be embarrassing so provide privacy and follow standard practices.

    Artificial Airways

    • Artificial airways keep the airway open.
    • They are needed for disease, injury, secretions, or aspiration where they obstruct the airway.
    • They are needed for mechanical ventilation, some clients who are semi-conscious or unconscious, and the client is recovering from anaesthesia.
    • Intubation means inserting an artificial airway.
    • Common types of these airways are oro-pharyngeal, naso-pharyngeal, endo-tracheal (ET), and tracheostomy tube.
    • An oro-pharyngeal airway is inserted through the mouth and into the pharynx.
    • A naso-pharyngeal airway is inserted through a nostril.
    • An endo-tracheal (ET) tube is inserted through the mouth or nose and into the trachea.
    • A cuff is inflated to keep the airway in place
    • A tracheostomy tube is inserted through a surgically created opening into the trachea and cuffed tubes are common.

    Care Measures for Client With Artificial Airways

    • Vital signs are checked often, and observe for hypoxia and other signs and symptoms.
    • If an airway comes out or is dislodged, tell the nurse at once.
    • Frequent oral hygiene is needed, and follow the care plan.
    • Follow the care plan for communication methods to comfort and reassure the client.
    • Always keep the call bell within reach.
    • Use touch to show you care, if appropriate for your client's culture and ethnicity.

    Tracheostomy

    • A tracheostomy is a surgically created opening into the trachea and can be temporary or permanent.
    • A tracheostomy tube has three parts: the obturator, the inner cannula, and the outer cannula.
    • The obturator is used to guide the insertion of the outer cannula.
    • The inner cannula is inserted and locked in place, but the outer cannula is not removed.
    • The tube must not come out (extubation), and must remain patent.
    • A loose tube can damage the trachea.
    • If the client is unable to cough up secretions, suctioning is needed.

    Safety Measures for Clients With Tracheostomies

    • Call for the nurse or supervisor if you note signs and symptoms of hypoxia or respiratory distress, or if the outer cannula comes out.
    • Nothing must enter the stoma.
    • Tracheostomy care involves cleaning the inner cannula to remove mucus and keep the airway patent.
    • Cleaning the stoma to prevent infection and skin breakdown.
    • Apply clean ties or a Velcro collar to prevent infection.
    • The stoma or tube should always be covered when the client goes outside.
    • Never cover stoma with plastic or leather.
    • The client should take tub baths instead of showers and water should never enter the stoma.
    • Medical Alert jewellery should always be worn.
    • Trachea dressing should never have anything that can be inhaled.

    Suctioning the Airway

    • Secretions can collect in the upper airway.
    • Retained secretions can obstruct air flow into and out of the airway, and provide an environment for microbes.
    • Retained secretions can also interfere with oxygen (O2) and carbon dioxide (CO2) exchange.
    • Hypoxia can occur due to retained secretions.
    • Persons who cannot cough or have a cough that is too weak to remove secretions need suctioning.
    • Suction is the process of withdrawing or sucking up fluid (secretions).

    Suctioning Sites

    • These routes are used to suction the airway such as oro-pharyngeal, naso-pharyngeal, and lower airway.
    • Oro-pharyngeal involves suctioning the mouth and pharynx.
    • Naso-pharyngeal involves suctioning the nose and pharynx.
    • Lower airway involves the suction catheter being passed through an endotracheal (ET) or tracheostomy tube.

    Safety Measures for Suctioning

    • If suctioning is not done correctly, the client may be unable to breathe and hypoxia can occur.
    • Life threatening complications can arise.
    • Client's lungs are hyperventilated prior to suctioning by use of an ambu bag.
    • You must ensure that suctioning is within your scope of practice for your province or agency.

    Mechanical Ventilation

    • Mechanical ventilation is using a machine to move air into and out of the lungs.
    • It is needed for a variety of health care problems where by there is hypoxia from weak muscle effort, airway obstruction, and damaged lung tissue.
    • It is needed for nervous system diseases and injuries that can affect the respiratory centre which interferes with messages between the lungs and the brain.
    • It is needed for drug overdoses that can depress the brain's hypothalamus or the breathing control centre.

    Chest Tubes

    • The doctor inserts chest tubes to remove the air, blood, or fluid.
    • Chest tubes attach to a drainage system.
    • The system must be airtight, and water-seal drainage keeps the system airtight.

    Caring for Chest Tubes

    • Keep drainage system below the level of the chest.

    • Keep tubing coiled on the bed with no kinks.

    • Check vital signs as directed.

    • Observe chest drainage.

    • Turn and reposition the client carefully.

    • Assist with deep breathing, coughing, and incentive spirometry.

    • Keep sterile petrolatum gauze at bedside.

    • Oxygen is a basic life need.

    • Brain damage and serious illnesses can occur quickly if there is insufficient oxygen.

    • PSWs assist but do not "give" oxygen.

    • The oxygen level should not be adjusted.

    Supporting Oxygen Needs Task Considerations

    • To support a client's O2 needs, it must be allowed in a PSW's province or territory.
    • The task must be within the job description.
    • PSW's must have the necessary training and know how to use the equipment.
    • The task must be reviewed with a nurse.
    • A nurse or technician must supervise the task.

    Altered Respiratory Function Processes

    • Involves air moving into and out of the lungs.
    • Oxygen and CO2 are exchanged at the alveoli.
    • Blood carries oxygen to cells and removes carbon dioxide.
    • Cells, tissues, and organs die without oxygen (O2).
    • The inability to excrete carbon dioxide (CO2) leads to death.
    • The respiratory and cardiovascular systems work together to deliver oxygen and excrete carbon dioxide.
    • Proper oxygenation and carbon dioxide excretion requires both systems to function optimally.
    • A malfunction in any body system can impact oxygenation since all body systems work together.

    Factors Affecting Oxygen Needs

    • Respiratory system function relies on an open airway.
    • Respiratory system function requires an adequate number of alveoli, necessary to absorb oxygen and excrete carbon dioxide.
    • Circulatory system function depends on red blood cell count.
    • Circulatory system function requires hemoglobin to pick up and carry oxygen.
    • Circulatory system requires bone marrow to produce RBC's.
    • Examples of possible respiratory issues: asthma, and upper respiratory infections
    • Examples of possible circulatory issues: iron deficiency, anemia, blood loss, cancers of the blood
    • Nervous system function is affected by disease or injury to respiratory muscles.
    • Brain deterioration can affect signals to the rest of the body to breathe.
    • Some illnesses asstroke, ALS, and multiple sclerosis can cause nervous system dysfunction.
    • Muscles weaken, lungs become less elastic with age causing difficulty coughing.
    • Exercise requires more oxygen.
    • Fever increases oxygen needs, as the body works harder to fight infection.
    • Pain increases oxygen needs, chest or abdominal surgery can make it difficult.
    • Good nutrition is necessary to produce RBCs.
    • Certain drugs such as morphine and narcotics depress the respiratory center or cause respiratory arrest.
    • People with substance abuse problems are at risk for respiratory depression or arrest
    • Smoking can damage lung tissue, which leads to lung cancer and COPD.
    • Allergies Swelling of upper airway can result in chronic bronchitis, asthma, and death.
    • Pollutant exposure damages lungs.
    • Alcohol depresses the cough reflex, and increases risk of aspiration.

    Signs and Symptoms of Altered Respiratory Function

    • Shortness of breath (SOB) can be acute or chronic.
    • Clients may feel anxious or panic, when they can't breathe.
    • Struggling to breathe can be exhausting.
    • Shortness of breath on exertion (SOBOE) can occur.
    • "On exertion" means with activity, which is different from SOB at rest.
    • Client may prefer to sit up in bed or chair, since it is difficult to breathe when lying flat (orthopnea).

    Observable Signs and Symptoms

    • Notice any abnormal breathing pattern.
    • Note the frequency of cough.
    • Note whether a cough is productive or non-productive.
    • Observe the colour, odour, and consistency of sputum. Note if there is any blood (hemoptysis).
    • Listen for noisy respirations such as wheezing and gurgling.
    • Be aware of any chest pain.
    • Look for cyanosis or a grey/pale hue in the skin. Can be seen in lips, nail beds, skin, mucous membranes
    • Monitor for increased heart and respiratory rate. And decreased SpO2
    • Observe the body position of client who wants to sit up and forward as body's effort to expand chest.

    Abnormal Respiratory Patterns

    • Tachypnea = rapid breathing, with respiration more than 24 per minute.
    • Bradypnea = slow breathing, with respiration fewer than 12 per minute.
    • Apnea = lack or absence of breathing.
    • Sleep apnea and periodic apnea of newborns are other types of apnea.
    • Kussmaul respirations = deep and rapid respirations, that are characteristic of diabetic acidosis
    • Hypoventilation = slow, shallow, and sometimes irregular breaths.
    • Hyperventilation = respirations are rapid and deeper than normal
    • Dyspnea = Difficult, labored, or painful breathing
    • Cheyne-Stokes = Respirations gradually increase in rate and depth and then become shallow and slow.
    • Breathing may stop for 10 to 20 seconds with Cheyne-Stokes.
    • Cheyne-Stokes respirations are common when death is near.
    • Orthopnea = breathing deeply and comfortably only when sitting.

    Hypoxia

    • Hypoxia is a deficiency of oxygen in the cells that stops them from functioning properly.
    • Any factor that affects respiratory function can cause hypoxia.
    • The brain is very sensitive to inadequate oxygen supply.
    • Early signs of hypoxia include restlessness, dizziness, and disorientation. These signs are easy to miss and confuse with aging or dementia.
    • Hypoxia is life threatening and the signs and symptoms must be reported immediately.

    Promoting Oxygenation

    • To get enough oxygen, air must reach the alveoli to exchange O2 and CO2.
    • Disease and injury can prevent air from reaching the alveoli, and can be prevented with deep breathing and coughing.
    • Pain and immobility interfere with deep breathing and coughing.
    • Narcotics can interfere with deep breathing and coughing.
    • Care plan will outline measures to promote oxygenation.

    Positioning

    • Breathing is easier in semi-Fowler's and Fowler's positions.
    • Clients with difficulty breathing often prefer the orthopneic position.
    • Unless there are positioning restrictions, the client should never lie on one side for long periods.
    • Frequent position changes are needed at least every 2 hours.

    Deep Breathing and Coughing

    • Deep breathing moves air into most parts of the lungs.
    • Coughing removes mucus.
    • Deep breathing and coughing help prevent pneumonia and atelectasis (lung collapses).
    • Clients may be reluctant to do exercises as painful after injury or surgery, or be afraid of breaking open an incision.
    • The postsurgical period, bed rest, lung disease, and paralysis are factors for atelectasis
    • Deep breathing and coughing may be done every 1-2 hours or four times a day, as ordered.

    Incentive spirometry

    • Is a machine that measures the amount of air inhaled.
    • It is also known as sustained maximal inspiration [SMI].
    • Incentive spirometry provides a visual guide for the client with a goal to improve lung function.
    • The client takes slow, deep breath until the balls rise to the desired height.
    • The client hold his breath for at least 3 seconds, and exhales slowly.
    • The client's care plan or supervisor gives instructions about how often the client should use it, the desired height, and the number of breaths needed.

    Assisting with Oxygen Therapy

    • Oxygen is treated as a drug because some clients need oxygen constantly, and others need it for symptom relief.
    • Support workers do not give oxygen.
    • You assist the nurse in providing safe care.
    • PSW's may be trained to transfer oxygen or provide oral suction.

    Oxygen sources:

    • There are 3 main delivery systems:
    • Oxygen concentrator which filters oxygen from the air in the room. It is plugged into a grounded electrical outlet.
    • Oxygen cylinder that contains compressed oxygen. The oxygen tank is placed at the bedside.
    • Liquid oxygen system uses a portable unit filled from a stationary container which unit can be worn over the shoulder.
    • Oxygen is piped directly into a person's unit through a wall oxygen outlet in hospitals and some continuing care facilities.

    Oxygen therapy

    • ASSIST with oxygen therapy.
    • Do not administer oxygen.
    • Give safe care to clients receiving oxygen by following safety guidelines.

    Oxygen and Fire Safety

    • Keep oxygen source away from heat and open flame because oxygen is flammable.
    • Physician, nurse, and respiratory therapist are responsible for teaching client and family members about oxygen safety.
    • Warn client of dangers and the safety hazard, and report concerns to supervisor.

    Oxygen Administration Devices

    • Oxygen can be delivered by nasal cannula, simple face mask, partial-rebreather mask, non-rebreather mask, and Venturi mask.
    • Moisture can build up under the mask so face should be cleaned and dried.
    • Mask can easily cause skin breakdown so face must be cleaned and dried.
    • Masks are typically removed for eating, where oxygen is given by the cannula during meals.
    • Masks are sometimes changed from masks to nasal cannula

    Oxygen Administration Set-up

    • If oxygen is not humidified, it will dry the airway's mucous membranes.
    • Distilled water is often added to the humidifier.

    Oxygen Flow Rates

    • The flow rate is the amount of oxygen given, measured in liters per minute (L/min).
    • The doctor orders the flow rate or orders a range for the nurse to adjust according to the patient's condition.
    • The nurse or respiratory therapist sets the flow rate.
    • The nurse and care plan will tell you the person's flow rate.
    • Your role is to know the flow rate that is ordered and check that the flow rate is correct.
    • Tell the supervisor at once if the flow rate is too high or too low, and a nurse or respiratory therapist will adjust the flow rate.

    Collecting Sputum Specimens

    • Sputum is mucus from the respiratory system, not saliva (spit).
    • Sputum is studied for blood microbes and abnormal cells.
    • The client will have to cough up sputum from the bronchi and trachea which can be painful or hard to do.
    • The specimen should be collected in the morning.
    • Instruct the client not to use mouthwash prior to the procedure.
    • Acknowledge that the procedure can be embarrassing so provide privacy and follow standard practices.

    Artificial Airways

    • Artificial airways keep the airway open.
    • They are needed for disease, injury, secretions, or aspiration where they obstruct the airway.
    • They are needed for mechanical ventilation, some clients who are semi-conscious or unconscious, and the client is recovering from anaesthesia.
    • Intubation means inserting an artificial airway.
    • Common types of these airways are oro-pharyngeal, naso-pharyngeal, endo-tracheal (ET), and tracheostomy tube.
    • An oro-pharyngeal airway is inserted through the mouth and into the pharynx.
    • A naso-pharyngeal airway is inserted through a nostril.
    • An endo-tracheal (ET) tube is inserted through the mouth or nose and into the trachea.
    • A cuff is inflated to keep the airway in place
    • A tracheostomy tube is inserted through a surgically created opening into the trachea and cuffed tubes are common.

    Care Measures for Client With Artificial Airways

    • Vital signs are checked often, and observe for hypoxia and other signs and symptoms.
    • If an airway comes out or is dislodged, tell the nurse at once.
    • Frequent oral hygiene is needed, and follow the care plan.
    • Follow the care plan for communication methods to comfort and reassure the client.
    • Always keep the call bell within reach.
    • Use touch to show you care, if appropriate for your client's culture and ethnicity.

    Tracheostomy

    • A tracheostomy is a surgically created opening into the trachea and can be temporary or permanent.
    • A tracheostomy tube has three parts: the obturator, the inner cannula, and the outer cannula.
    • The obturator is used to guide the insertion of the outer cannula.
    • The inner cannula is inserted and locked in place, but the outer cannula is not removed.
    • The tube must not come out (extubation), and must remain patent.
    • A loose tube can damage the trachea.
    • If the client is unable to cough up secretions, suctioning is needed.

    Safety Measures for Clients With Tracheostomies

    • Call for the nurse or supervisor if you note signs and symptoms of hypoxia or respiratory distress, or if the outer cannula comes out.
    • Nothing must enter the stoma.
    • Tracheostomy care involves cleaning the inner cannula to remove mucus and keep the airway patent.
    • Cleaning the stoma to prevent infection and skin breakdown.
    • Apply clean ties or a Velcro collar to prevent infection.
    • The stoma or tube should always be covered when the client goes outside.
    • Never cover stoma with plastic or leather.
    • The client should take tub baths instead of showers and water should never enter the stoma.
    • Medical Alert jewellery should always be worn.
    • Trachea dressing should never have anything that can be inhaled.

    Suctioning the Airway

    • Secretions can collect in the upper airway.
    • Retained secretions can obstruct air flow into and out of the airway, and provide an environment for microbes.
    • Retained secretions can also interfere with oxygen (O2) and carbon dioxide (CO2) exchange.
    • Hypoxia can occur due to retained secretions.
    • Persons who cannot cough or have a cough that is too weak to remove secretions need suctioning.
    • Suction is the process of withdrawing or sucking up fluid (secretions).

    Suctioning Sites

    • These routes are used to suction the airway such as oro-pharyngeal, naso-pharyngeal, and lower airway.
    • Oro-pharyngeal involves suctioning the mouth and pharynx.
    • Naso-pharyngeal involves suctioning the nose and pharynx.
    • Lower airway involves the suction catheter being passed through an endotracheal (ET) or tracheostomy tube.

    Safety Measures for Suctioning

    • If suctioning is not done correctly, the client may be unable to breathe and hypoxia can occur.
    • Life threatening complications can arise.
    • Client's lungs are hyperventilated prior to suctioning by use of an ambu bag.
    • You must ensure that suctioning is within your scope of practice for your province or agency.

    Mechanical Ventilation

    • Mechanical ventilation is using a machine to move air into and out of the lungs.
    • It is needed for a variety of health care problems where by there is hypoxia from weak muscle effort, airway obstruction, and damaged lung tissue.
    • It is needed for nervous system diseases and injuries that can affect the respiratory centre which interferes with messages between the lungs and the brain.
    • It is needed for drug overdoses that can depress the brain's hypothalamus or the breathing control centre.

    Chest Tubes

    • The doctor inserts chest tubes to remove the air, blood, or fluid.
    • Chest tubes attach to a drainage system.
    • The system must be airtight, and water-seal drainage keeps the system airtight.

    Caring for Chest Tubes

    • Keep drainage system below the level of the chest.
    • Keep tubing coiled on the bed with no kinks.
    • Check vital signs as directed.
    • Observe chest drainage.
    • Turn and reposition the client carefully.
    • Assist with deep breathing, coughing, and incentive spirometry.
    • Keep sterile petrolatum gauze at bedside.

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