UPDATE] REVISED EXAM QUESTIONS WITH
CORRECT ANSWERS (VERIFIED ANSWERS)
HIGHEST TEST SCORE A+ GRADE
Which of the following statements regarding pulse oximetry is correct
A. Caution must be exercised when using the pulse oximeter on a patient with
carbon monoxide poisoning because falsely low readings are common.
B. The pulse oximeter is a valuable assessment tool that measures the percentage
of red blood cells that contain hemoglobin molecules.
C. Pulse oximetry measures the percentage of hemoglobin that is saturated with
oxygen but does not measure the actual hemoglobin content of the blood.
D. Most otherwise healthy patients can maintain adequate oxygenation and good
skin color with oxygen saturation readings as low at 70% to 80%
C. Pulse oximetry measures the percentage of hemoglobin that is saturated with
oxygen but does not measure the actual hemoglobin content of the blood.
A 30-year-old male presents with acute shortness of breath, widespread hives,
and facial swelling. He denies any past medical history and takes no medications.
,During your assessment, you hear wheezing over all lung fields. His blood
pressure is 90/50 mm Hg, and his heart rate is 110 beats/min. In addition to giving
him high-flow oxygen, the MOST important treatment for this patient is:
A. An antihistamine
B. A beta-antagonist
C. Albuterol
D. Epinephrine
D. Epinephrine
Albuterol is a generic name for
A. Alupent
B. Atrovent
C. Ventolin
Singulair
C. Ventolin
When the level of arterial carbon dioxide rises above normal:
A. The brain stem inhibits respirations
B. Exhalation lasts longer than inhalation
C. Respirations increase in rate and depth
D. Respirations decrease in rate and depth
C. Respirations increase in rate and depth
,An alert patient presents with a regular pattern of inhalation and exhalation and
breath sounds that are clear and equal on both sides of the chest. These findings
are consistent with:
A. Respiratory insufficiency
B. Respiratory difficulty
C. Adequate air exchanges
And obstructed airway
C. Adequate air exchanges
In order for efficient pulmonary gas exchange to occur:
A. The pulmonary capillaries must be completely constricted and the alveoli must
be collapsed.
B. The percentage of inhaled carbon dioxide must exceed the percentage of
inhaled oxygen
C. There must be low quantities of pulmonary surfactant to allow for full alveolar
expansion
D. Oxygen and carbon dioxide must be able to freely diffuse across the alveolar-
capillary membrane
D. Oxygen and carbon dioxide must be able to freely diffuse across the alveolar-
capillary membrane
Which of the following statements regarding the hypoxic drive is correct?
A. The hypoxic drive serves as the primary stimulus for breathing in healthy
individuals.
, B. Chronic carbon dioxide elimination often results in activation of the hypoxic
drive.
C. 100% supplemental oxygen will always cause apnea in patients with a hypoxic
drive.
D. The hypoxic drive stimulates a person to breathe on the basis of low oxygen
levels.
D. The hypoxic drive stimulates a person to breathe on the basis of low oxygen
levels.
A pleural effusion is MOST accurately defined as:
A. Fluid accumulation outside the lung
B. A unilaterally collapsed lung
C. A bacterial infection of the lung tissue
D. Diffuse collapsing of the alveoli
A. Fluid accumulation outside the lung
A conscious and alert 29-year-old female with a history of asthma complains of
difficulty breathing that began after her morning jog. The temperature outside is
40F (5C). On exam, you hear bilateral expiratory wheezing. After providing
supplemental oxygen, you should:
A. Contact medical control and administer an antihistamine
B. Call medical control and ask how to proceed with treatment
C. Place her in a recumbent position to facilitate breathing
D. Determine if she has been prescribed a beta-agonist inhaler