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EMS 202 EXAM 3- 28/ QUESTIONS AND ANSWERS.
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EMS 202 EXAM 3- 28/ QUESTIONS ANDANSWERS.
A 23-year-old male experienced severe head trauma after his
motorcycle collided with an oncoming truck. He is unconscious,
has rapid and shallow breathing, and has copious bloody
secretions in his mouth. How should you manage his airway?
Select one:
a. Provide continuous ventilations with a bag-valve mask to
minimize hypoxia.
b. Suction his oropharynx with a rigid catheter until all
secretions are removed.
c. Alternate 15 seconds of oral suctioning with 2 minutes of
assisted ventilation.
d. Insert a nasopharyngeal airway and provide suction and
assisted ventilations. - -c
-The diaphragm is innervated by the _______________ nerve,
which allows it to contract.
Select one:
a. vestibulocochlear
b. vagus
c. phrenic
d. hypoglossal - -c
-An unconscious patient found in a prone position must be
placed in a supine position in case he or she:
Select one:
a. has increased tidal volume.
b. requires CPR.
c. regains consciousness.
d. begins to vomit. - -b
-As the single EMT managing an apneic patient's airway, the
preferred initial method of providing ventilations is the:
Select one:
a. manually triggered ventilation device.
b. one-person bag-valve mask.
c. mouth-to-mask technique with a one-way valve.
, d. mouth-to-mouth technique. - -c
-Central chemoreceptors located in the medulla provide
feedback to increase the rate and depth of breathing when they
sense:
Select one:
a. increased levels of oxygen in the blood and a decrease in the
pH of the cerebrospinal fluid.
b. slight increases in carbon dioxide or a decrease in the pH of
the cerebrospinal fluid.
c. decreased levels of oxygen in the blood and an increase in the
pH of the cerebrospinal fluid.
d. slight decreases in carbon dioxide and an increase in the pH of
the cerebrospinal fluid. - -b
-In contrast to inhalation, exhalation:
Select one:
a. is a passive process caused by increased intrathoracic
pressure.
b. requires muscular effort to effectively expel air from the lungs.
c. occurs when the diaphragm lowers and expels air from the
lungs.
d. is an active process caused by decreased intrathoracic
pressure. - -a
-Inhalation occurs when the:
Select one:
a. diaphragm and intercostal muscles relax and cause an
increase in intrathoracic pressure.
b. diaphragm and intercostal muscles ascend and cause an
increase in intrathoracic pressure.
c. diaphragm and intercostal muscles contract and cause a
decrease in intrathoracic pressure.
d. diaphragm ascends and the intercostal muscles contract,
causing a decrease in intrathoracic pressure. - -c
-Proper technique for suctioning the oropharynx of an adult
patient includes:
Select one:
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