EMT chapter 11 JBL quiz

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

2000

At a flow rate of 6l/min, a nasal cannula can deliver an approximately 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 breaths/min and pink skin

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

Apneic oxygenation

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

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

Cheyne-Stokes respirations

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

The tongue

Gas exchange in the lungs is facilitated by:

adequate amounts of surfactant.

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

bronchus

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

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

epiglottis

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