Ch. 11 Quiz

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

2000

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

44%

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

500 psi

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

90

Which of the following patients is breathing adequately?

A conscious male with respirations of 19 breath/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?

Bourdon-gauge flowmeter

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

Bronchus

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

Cheyne-Strokes respirations

Gas exchange in the lungs is facilitated by:

adequate amounts of surfactant

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

apneic oxygenation

Oxygen toxicity is a condition in which:

cellular tissue damage occurs from excessive oxygen levels in the blood

Which of the following is a late sign of hypoxia?

cyanosis

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

hypercarbia

The hypoxic drive is influenced by:

low blood oxygen levels

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

muscle

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

nonrebreathing mask

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

phrenic

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

shallow breathing

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

the epiglottis

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

the tongue