EMT chapter 11 JBL quiz

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

nonrebreathing mask

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

500 psi

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

44%

Gas exchange in the lungs is facilitated by:

adequate amounts of surfactant.

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

Apneic oxygenation

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

Cheyne-Stokes respirations

Oxygen toxicity is a condition in which:

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

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

epiglottis

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

phrenic

The hypoxic drive is influenced by:

low blood oxygen levels

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

hypercarbia

The pressure of gas in a full cylinder of oxygen is approximately ______________

Pounds per square inch (psi)

2000

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

The tongue

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

shallow breathing

Which of the following is a late sign of hypoxia?

cyanosis

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

muscle

Which of the following oxygen flow meters is NOT affected by gravity and can be used in any position when attached to an oxygen cylinder?

Bourdon-gauge flow meter

Which of the following patients is breathing adequately?

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

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

bronchus

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