Chapter 11 EMS Systems - Quiz

Which of the following structures is NOT found in the upper airway? Select one: A.Bronchus B.Pharynx C.Oropharynx D.Larynx

A.Bronchus

Which of the following factors will cause a reduction in minute volume in an adult? Select one: A.Shallow breathing B.Respirations of 20 breaths/min C.Increased tidal volume D.Slight increase in respiratory rate

A.Shallow breathing

The diaphragm is innervated by the _________ nerve, which allows it to contract. Select one: A.phrenic B.vagus C.vestibulocochlear D.hypoglossal

A.phrenic

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.70 B.90 C.100 D.80

B.90

Which of the following is a late sign of hypoxia? Select one: A.Restlessness B.Cyanosis C.Tachycardia D.Anxiety

B.Cyanosis

What is the MOST common cause of airway obstruction in an unconscious patient? Select one: A.Aspirated fluid B.The tongue C.Blood clots D.Vomitus

B.The tongue

High-flow oxygen with a nasal cannula during the preoxygenation phase of endotracheal intubation is called: Select one: A.denitrogenation. B.apneic oxygenation. C.active ventilation. D.passive ventilation.

B.apneic oxygenation.

The presence of elevated carbon dioxide levels in the blood is called: Select one: A.hypoxia. B.hypercarbia. C.hypoxemia. D.acidosis.

B.hypercarbia.

The hypoxic drive is influenced by: Select one: A.high blood oxygen levels. B.low blood oxygen levels. C.high blood carbon dioxide levels. D.low blood carbon dioxide levels.

B.low blood oxygen levels.

A patient who is suspected of being hypoxic and is breathing adequately should be given supplemental oxygen with a: Select one: A.mouth-to-mask device. B.nonrebreathing mask. C.nasal cannula. D.bag-mask device.

B.nonrebreathing mask.

The pressure of gas in a full cylinder of oxygen is approximately _______ pounds per square inch (psi). Select one: A.500 B.1,000 C.2,000 D.3,000

C.2,000

At a flow rate of 6 L/min, a nasal cannula can deliver an approximate oxygen concentration of up to: Select one: A.35%. B.52%. C.44%. D.24%.

C.44%

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.500 psi. D.200 psi.

C.500 psi.

Gas exchange in the lungs is facilitated by: Select one: A.surfactant-destroying organisms. B.water or blood within the alveoli. C.adequate amounts of surfactant. D.pulmonary capillary constriction.

C.adequate amounts of surfactant.

Oxygen toxicity is a condition in which: Select one: A.decreased levels of oxygen in the blood result in free radical production. B.significantly low levels of oxygen in the blood damage the cellular tissue. C.cellular tissue damage occurs from excessive oxygen levels in the blood. D.excessive blood oxygen levels cause the hypoxic patient to stop breathing.

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

Which of the following patients is breathing adequately? Select one: A.A conscious female with facial cyanosis and rapid, shallow respirations B.An unconscious 52-year-old female with snoring respirations and cool, pale skin C.A conscious male with respirations of 18 breaths/min and reduced tidal volume D.A conscious male with respirations of 19 breaths/min and pink skin

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

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.Vertical-position flowmeter B.Pressure-compensated flowmeter C.Ball-and-float flowmeter D.Bourdon-gauge flowmeter

D.Bourdon-gauge flowmeter

Irregular respirations characterized by an increasing rate and depth of breathing followed by periods of apnea are called: Select one: A.agonal respirations. B.eupneic respirations. C.ataxic respirations. D.Cheyne-Stokes respirations.

D.Cheyne-Stokes respirations.

Which of the following organs or tissues can survive the longest without oxygen? Select one: A.Heart B.Liver C.Kidneys D.Muscle

D.Muscle

Structures of the lower airway include all of the following, EXCEPT: Select one: A.bronchioles. B.the trachea. C.alveoli. D.the epiglottis.

D.the epiglottis.