EMT Chapter 10 Quiz & Flashcards on Hypoxia Assessment

Questions and Answers

A 19-year-old female is found unconscious by her roommate. Your primary assessment reveals that her breathing is inadequate. As you insert an oropharyngeal airway, she begins to gag violently. What should you do?

Select a smaller oropharyngeal airway and attempt to insert it.

Continue to insert the airway as you suction her oropharynx.

Remove the airway and be prepared to suction her oropharynx. (correct)

Insert the airway no further but leave it in place as a bite block.

A man was found unresponsive in his bed at home. There is no evidence of injury and the patient's medical history is not known. The patient's face is cyanotic, yet the pulse oximeter reads 98%. Which of the following would MOST likely explain this?

Severe pulmonary edema

Carbon monoxide poisoning (correct)

His extremities are cold

Increased body temperature

A patient who is suspected of being hypoxic and is breathing adequately should be given supplemental oxygen with a:

Nasal cannula

Mouth-to-mask device

Bag-valve mask

Nonrebreathing mask (correct)

During your assessment of a patient with respiratory distress, you hear wheezing when listening to breath sounds. What does this indicate?

A lower airway obstruction Signup and view all the answers

How does CPAP improve oxygenation and ventilation in patients with certain respiratory problems?

It forces the alveoli open and pushes oxygen across the alveolar membrane. Signup and view all the answers

In which of the following patients would the head tilt-chin lift maneuver be the MOST appropriate method of opening the airway?

A 37-year-old female who is found unconscious in her bed Signup and view all the answers

Irregular respirations characterized by an increasing rate and depth of breathing followed by periods of apnea are called:

Cheyne-Stokes respirations Signup and view all the answers

The nasopharyngeal airway is MOST beneficial because it:

Can maintain a patent airway in a semiconscious patient with a gag reflex. Signup and view all the answers

The physical act of moving air into and out of the lungs is called:

Ventilation Signup and view all the answers

What occurs when a patient is breathing very rapidly and shallowly?

Air moves primarily in the anatomic dead space and does not participate in pulmonary gas exchange. Signup and view all the answers

When testing a mechanical suctioning unit, you should turn on the device, clamp the tubing, and ensure that it generates a vacuum pressure of more than:

300 mm Hg Signup and view all the answers

Which of the following is the MOST reliable indicator of adequately performed bag-valve mask ventilations in an apneic adult with a pulse?

Adequate rise of the chest when squeezing the bag Signup and view all the answers

Which of the following patients is breathing adequately?

A conscious male with respirations of 19 breaths/min and pink skin Signup and view all the answers

Which of the following patients should you place in the recovery position?

A 31-year-old semiconscious male with low blood sugar and adequate breathing Signup and view all the answers

Which of the following statements regarding breathing adequacy is correct?

Patients breathing shallowly may require assisted ventilation despite a normal respiratory rate. Signup and view all the answers

Which of the following statements regarding normal gas exchange in the lungs is correct?

Oxygen and carbon dioxide diffuse across the alveolar walls and capillaries. Signup and view all the answers

Which of the following statements regarding oxygen is correct?

Oxygen supports the combustion process and may cause a fire. Signup and view all the answers

Which of the following structures is NOT found in the upper airway?

Bronchus Signup and view all the answers

You are performing mouth-to-mask ventilations with oxygen connected and set at a flow rate of 15 L/min. What percentage of oxygen is your patient receiving?

55% Signup and view all the answers

You are ventilating a patient with a stoma; however, air is escaping from the mouth and nose. To prevent this, you should:

Seal the mouth and nose. Signup and view all the answers

Study Notes

Oropharyngeal Airway Management

If an unconscious patient gagged upon insertion of an oropharyngeal airway, it should be removed and suctioning prepared.

Cyanosis and Oxygen Saturation

Cyanosis with a normal pulse oximeter reading may indicate carbon monoxide poisoning rather than other conditions.

Supplemental Oxygen Delivery

A nonrebreathing mask is recommended for patients suspected of hypoxia yet breathing adequately.

Respiratory Distress Indicators

Wheezing suggests a lower airway obstruction during respiratory assessments.

CPAP Functionality

Continuous Positive Airway Pressure (CPAP) helps by forcing the alveoli open to enhance oxygen transfer across the alveolar membrane.

Airway Opening Techniques

The head tilt-chin lift is suitable for unconscious patients without head trauma, as it minimizes airway obstruction risk.

Irregular Respirations

Cheyne-Stokes respirations are characterized by cycles of increasing depth followed by periods of apnea.

Nasopharyngeal Airway Utility

Nasopharyngeal airways are ideal for semiconscious patients with a gag reflex, offering effective airway maintenance.

Ventilation Definition

Ventilation is defined as the mechanical process of moving air in and out of the lungs.

Rapid Shallow Breathing Ramifications

Rapid, shallow breathing primarily utilizes the anatomic dead space, reducing effective gas exchange.

Mechanical Suction Testing Standards

A mechanical suction unit must generate a vacuum pressure exceeding 300 mm Hg for effective operation.

Bag-Valve Mask Effectiveness

The most reliable sign of effective bag-valve mask ventilation is adequate chest rise during squeezing of the bag.

Breathing Adequacy Recognition

Patients with pink skin and a respiratory rate of 19 breaths/min are considered to be breathing adequately.

Recovery Position Indications

A semiconscious male with low blood sugar and adequate breathing should be placed in the recovery position for safety.

Breathing Adequacy Assessment

Shallow breathing can necessitate assisted ventilation even with a normal respiratory rate.

Normal Gas Exchange

Gas exchange occurs efficiently as oxygen and carbon dioxide diffuse across the alveolar and capillary walls.

Oxygen Characteristics and Safety

Oxygen is a combustion supporter and must be handled with caution to prevent fire hazards.

Upper Airway Composition

The bronchus is not a structure associated with the upper airway; it is part of the lower airway.

Oxygen Administration Levels

A mouth-to-mask ventilation at 15 L/min typically delivers approximately 55% oxygen to the patient.

Stoma Ventilation Issues

To prevent air leakage when ventilating a stoma, sealing the mouth and nose is crucial for effective air delivery.

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Description

Test your knowledge on emergency medical techniques with this quiz covering Chapter 10. You will be presented with scenarios and must choose the correct response to various patient situations. Perfect for EMT students looking to reinforce their learning.

EMT Chapter 10 Quiz