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WorksheetsEMT Chapter 11
Total questions: 20
Worksheet time: 15mins
Which of the following structures is NOT found in the upper airway?
Larynx
Pharynx
Bronchus
Oropharynx
Structures of the lower airway include all of the following, EXCEPT:
alveoli
the trachea
the epiglottis
bronchioles
The diaphragm is innervated by the _________ nerve, which allows it to contract
vagus
phrenic
hypoglossal
vestibulocochlear
Which of the following factors will cause a reduction in minute volume in an adult?
Shallow breathing
Increased tidal volume
Respirations of 20 breaths/min
Slight increase in respiratory rate
Which of the following is a late sign of hypoxia?
Anxiety
Cyanosis
Tachycardia
Restlessness
Gas exchange in the lungs is facilitated by:
adequate amounts of surfactant
water or blood within the alveoli
surfactant-destroying organisms
pulmonary capillary constriction
The presence of elevated carbon dioxide levels in the blood is called:
acidosis
hypoxia
hypoxemia
hypercarbia
Which of the following patients is breathing adequately?
A conscious male with respirations of 19 breaths/min and pink skin
A conscious female with facial cyanosis and rapid, shallow respirations
A conscious male with respirations of 18 breaths/min and reduced tidal volume
An unconscious 52-year-old female with snoring respirations and cool, pale skin
Irregular respirations characterized by an increasing rate and depth of breathing followed by periods of apnea are called:
ataxic respirations
agonal respirations
eupneic respirations
Cheyne-Stokes respirations
What is the MOST common cause of airway obstruction in an unconscious patient?
Vomitus
The tongue
Blood clots
Aspirated fluid
Which of the following organs or tissues can survive the longest without oxygen?
Muscle
Heart
Liver
Kidneys
An oxygen cylinder should be taken out of service and refilled when the pressure inside it is less than:
200 psi
500 psi
1,000 psi
1,500 psi
The hypoxic drive is influenced by:
high blood oxygen levels
low blood oxygen levels
low blood carbon dioxide levels
high blood carbon dioxide levels
A patient who is suspected of being hypoxic and is breathing adequately should be given supplemental oxygen with a:
nasal cannula
nonrebreathing mask
bag-mask device
mouth-to-mask device
At a flow rate of 6 L/min, a nasal cannula can deliver an approximate oxygen concentration of up to:
24%
35%
44%
52%
High-flow oxygen with a nasal cannula during the preoxygenation phase of endotracheal intubation is called:
denitrogenation
apneic oxygenation
passive ventilation
active ventilation
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
70
80
90
100
Oxygen toxicity is a condition in which:
excessive blood oxygen levels cause the hypoxic patient to stop breathing
cellular tissue damage occurs from excessive oxygen levels in the blood
significantly low levels of oxygen in the blood damage the cellular tissue
decreased levels of oxygen in the blood result in free radical production
The pressure of gas in a full cylinder of oxygen is approximately _______ pounds per square inch (psi)
500
1,000
2,000
3,000
Which of the following oxygen flowmeters is NOT affected by gravity and can be used in any position when attached to an oxygen cylinder?
Vertical-position flowmeter
Bourdon-gauge flowmeter
Ball-and-float flowmeter
Pressure-compensated flowmeter
