Podcast
Questions and Answers
Why is oxygen considered a basic need for life?
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?
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?
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?
Which of the following describes the importance of carbon dioxide excretion in the body?
Which factor directly impacts the respiratory system's ability to function effectively?
Which factor directly impacts the respiratory system's ability to function effectively?
The circulatory system relies on which component to effectively transport oxygen?
The circulatory system relies on which component to effectively transport oxygen?
How does the nervous system impact oxygenation?
How does the nervous system impact oxygenation?
How does aging potentially affect oxygen needs?
How does aging potentially affect oxygen needs?
Why do oxygen needs typically increase during a fever?
Why do oxygen needs typically increase during a fever?
How might chest or abdominal surgery impact a client's oxygen needs?
How might chest or abdominal surgery impact a client's oxygen needs?
Why is adequate nutrition important for oxygenation?
Why is adequate nutrition important for oxygenation?
What is a potential impact of smoking on oxygenation?
What is a potential impact of smoking on oxygenation?
How can allergies affect a person's respiratory function?
How can allergies affect a person's respiratory function?
What is a sign or symptom of altered respiratory function?
What is a sign or symptom of altered respiratory function?
What does 'short of breath on exertion' (SOBOE) indicate?
What does 'short of breath on exertion' (SOBOE) indicate?
What term describes when a client needs to sit up in bed or a chair to breathe comfortably?
What term describes when a client needs to sit up in bed or a chair to breathe comfortably?
Which observation would be considered an abnormal breathing pattern?
Which observation would be considered an abnormal breathing pattern?
What does cyanosis indicate?
What does cyanosis indicate?
What is the definition of tachypnea?
What is the definition of tachypnea?
What characterizes Kussmaul respirations?
What characterizes Kussmaul respirations?
Which of the following defines hypoxia?
Which of the following defines hypoxia?
Which of the following is an early sign of hypoxia?
Which of the following is an early sign of hypoxia?
How can pain interfere with adequate oxygenation?
How can pain interfere with adequate oxygenation?
What is the primary reason for frequent position changes for clients regarding oxygenation?
What is the primary reason for frequent position changes for clients regarding oxygenation?
What is the purpose of deep breathing and coughing exercises?
What is the purpose of deep breathing and coughing exercises?
What condition can deep breathing and coughing exercises help prevent?
What condition can deep breathing and coughing exercises help prevent?
What is the goal of incentive spirometry?
What is the goal of incentive spirometry?
What is the PSW's role in assisting with incentive spirometry?
What is the PSW's role in assisting with incentive spirometry?
What is the main reason oxygen is treated as a drug?
What is the main reason oxygen is treated as a drug?
Which statement is true regarding a PSW's role in oxygen therapy?
Which statement is true regarding a PSW's role in oxygen therapy?
An oxygen concentrator works by:
An oxygen concentrator works by:
What should a PSW do if they observe that a client's oxygen flow rate is incorrect?
What should a PSW do if they observe that a client's oxygen flow rate is incorrect?
Why is it important to add distilled water to the humidifier in an oxygen setup?
Why is it important to add distilled water to the humidifier in an oxygen setup?
What is sputum?
What is sputum?
Why should a client avoid using mouthwash prior to collecting a sputum specimen?
Why should a client avoid using mouthwash prior to collecting a sputum specimen?
For what purpose are artificial airways used?
For what purpose are artificial airways used?
What is the meaning of 'intubation'?
What is the meaning of 'intubation'?
What should a PSW do immediately if a client's artificial airway comes out?
What should a PSW do immediately if a client's artificial airway comes out?
What is the function of the obturator in a tracheostomy tube?
What is the function of the obturator in a tracheostomy tube?
What does it mean for a tracheostomy tube to remain 'patent'?
What does it mean for a tracheostomy tube to remain 'patent'?
Flashcards
What is Oxygen (O2)?
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
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?
Why is Oxygen (O2) needed?
Cells, tissues, and organs need this to survive; otherwise, they die.
What affects oxygenation?
What affects oxygenation?
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Respiratory/Circulatory functions
Respiratory/Circulatory functions
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Factors affecting oxygen needs?
Factors affecting oxygen needs?
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Signs/symptoms of altered respiratory function
Signs/symptoms of altered respiratory function
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What is tachypnea?
What is tachypnea?
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What is apnea?
What is apnea?
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What is Dyspnea?
What is Dyspnea?
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What is Hypoxia?
What is Hypoxia?
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What are alveoli?
What are alveoli?
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What prevents air from reaching the alveoli?
What prevents air from reaching the alveoli?
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What are semi-Fowler's and Fowler's positions?
What are semi-Fowler's and Fowler's positions?
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Clients with difficulty breathing.
Clients with difficulty breathing.
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What is deep breathing and coughing?
What is deep breathing and coughing?
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What is atelectasis?
What is atelectasis?
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What is Incentrive Spirometry?
What is Incentrive Spirometry?
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What is Oxygen?
What is Oxygen?
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What are Oxygen Sources?
What are Oxygen Sources?
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What is a liquid oxygen system?
What is a liquid oxygen system?
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What is an oxygen concentrator?
What is an oxygen concentrator?
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Oxygen Therapy
Oxygen Therapy
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What is Oxygen?
What is Oxygen?
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Oxygen Administration?
Oxygen Administration?
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What is the O2 flow rate?
What is the O2 flow rate?
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What is Sputum?
What is Sputum?
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Artificial Airways.
Artificial Airways.
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What is oro-pharyngeal airway.
What is oro-pharyngeal airway.
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What is a tracheostomy tube.
What is a tracheostomy tube.
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Client with Artificial Airway.
Client with Artificial Airway.
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Tracheostomy tube has 3 parts.
Tracheostomy tube has 3 parts.
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Tracheostomy care involes:
Tracheostomy care involes:
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Tracheostomy care:
Tracheostomy care:
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Retained secretions
Retained secretions
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What is Suction?
What is Suction?
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Suctioning Sites
Suctioning Sites
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Harm of Suctioning
Harm of Suctioning
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What is Mechanical ventilation?
What is Mechanical ventilation?
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Airtight
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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