Chapter 11 EMT Quiz

​Question 1

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

with a:

Select one:

A. nasal cannula.

B. mouth-to-mask device.

C. nonrebreathing mask.

D. bag-mask device.

Question 2

An oxygen cylinder should be taken out of service and refilled when the pressure inside it is less than:

Select one:

A. 1,500 psi.

B. 1,000 psi.

C. 200 psi.

D. 500 psi.

Question 3

At a flow rate of 6 L/min, a nasal cannula can deliver an approximate oxygen concentration of up to:

Select one:

A. 44%.

B. 35%.

C. 24%.

D. 52%.

Question 4

Gas exchange in the lungs is facilitated by:

Select one:

A. surfactant-destroying organisms.

B. water or blood within the alveoli.

C. pulmonary capillary constriction.

D. adequate amounts of surfactant.

Question 5

High-flow oxygen with a nasal cannula during the preoxygenation phase of endotracheal intubation is called:

Select one:

A. apneic oxygenation.

B. active ventilation.

C. denitrogenation.

D. passive ventilation.

Question 6

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

called:

Select one:

A. eupneic respirations.

B. agonal respirations.

C. ataxic respirations.

D. Cheyne-Stokes respirations.

Question 7

Oxygen toxicity is a condition in which:

Select one:

A. cellular tissue damage occurs from excessive oxygen levels in the blood.

B. excessive blood oxygen levels cause the hypoxic patient to stop breathing.

C. decreased levels of oxygen in the blood result in free radical production.

D. significantly low levels of oxygen in the blood damage the cellular tissue.

Question 8

Structures of the lower airway include all of the following, EXCEPT:

Select one:

A. bronchioles.

B. alveoli.

C. the epiglottis.

D. the trachea.

Question 9

The diaphragm is innervated by the _________ nerve, which allows it to contract.

Select one:

A. phrenic

B. hypoglossal

C. vagus

D. vestibulocochlear

Question 10

The hypoxic drive is influenced by:

Select one:

A. high blood carbon dioxide levels.

B. low blood carbon dioxide levels.

C. high blood oxygen levels.

D. low blood oxygen levels.

Question 11

The presence of elevated carbon dioxide levels in the blood is called:

Select one:

A. hypercarbia.

B. hypoxia.

C. acidosis.

D. hypoxemia.

Question 12

The pressure of gas in a full cylinder of oxygen is approximately _______ pounds per square inch (psi).

Select one:

A. 500

B. 2,000

C. 1,000

D. 3,000

Question 13

What is the MOST common cause of airway obstruction in an unconscious patient?

Select one:

A. Vomitus

B. Blood clots

C. Aspirated fluid

D. The tongue

Question 14

Which of the following factors will cause a reduction in minute volume in an adult?

Select one:

A. Increased tidal volume

B. Respirations of 20 breaths/min

C. Slight increase in respiratory rate

D. Shallow breathing

Question 15

Which of the following is a late sign of hypoxia?

Select one:

A. Restlessness

B. Cyanosis

C. Anxiety

D. Tachycardia

Question 16

Which of the following organs or tissues can survive the longest without oxygen?

Select one:

A. Kidneys

B. Heart

C. Liver

D. Muscle

Question 17

Which of the following oxygen flowmeters is NOT affected by gravity and can be used in any position when

attached to an oxygen cylinder?

Select one:

A. Pressure-compensated flowmeter

B. Bourdon-gauge flowmeter

C. Vertical-position flowmeter

D. Ball-and-float flowmeter

Question 18

Which of the following patients is breathing adequately?

Select one:

A. An unconscious 52-year-old female with snoring respirations and cool, pale skin

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

C. A conscious female with facial cyanosis and rapid, shallow respirations

D. A conscious male with respirations of 18 breaths/min and reduced tidal volume

Question 19

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

Select one:

A. Bronchus

B. Larynx

C. Pharynx

D. Oropharynx

Question 20

With a good mask-to-face seal and an oxygen flow rate of 15 L/min, the nonrebreathing mask is capable of

delivering up to ______% inspired oxygen.

Select one:

A. 80

B. 100

C. 90

D. 70