EMT Chapter 10 Quiz

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

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%

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

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

Which of the following patients is breathing adequately?

A conscious male with respirations of 19 breaths/min and pink skin

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

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

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

Bronchus

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?

Carbon monoxide poisoning

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

Cheyne-Stokes respirations

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

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

Which of the following statements regarding oxygen is correct?

Oxygen supports the combustion process and may cause a fire

Which of the following statements regarding breathing adequacy is correct?

Patients breathing shallowly may require assisted ventilation despite a normal respiratory rate

The nasopharyngeal airway is MOST beneficial because it

can maintain a patent airway in a semiconscious patient with a gag reflex

During your assessment of a patient with respiratory distress, you hear wheezing when listening to breath sounds. This indicates

lower airway obstruction

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

nonrebreathing mask

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. You should:

remove the airway and be prepared to suction her oropharynx

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.

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

ventilation