Rationales | Complete Exam-Style Questions | 100% Verified | Pass
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EXAM INFORMATION
Total Questions: 60
Recommended Time: 90 minutes
Passing Threshold: 85%
Exam Format: Multiple Choice Questions (MCQs)
Question Style: Scenario-Based, Applied, and Professional Decision-Making Questions
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SECTION 1: Airway Management and Respiratory Emergencies
Question 1: You are called to a 58-year-old male who is experiencing difficulty breathing.
He is sitting upright, diaphoretic, and using accessory muscles. His oxygen saturation is
84% on room air. Breath sounds are diminished bilaterally with crackles audible in all
lung fields. He has a history of congestive heart failure. Which intervention should be
performed first?
A. Initiate continuous positive airway pressure at 10 cmH2O
B. Administer furosemide 40 mg intravenously
C. Apply a non-rebreather mask at 15 liters per minute
D. Obtain a 12-lead electrocardiogram
,Correct Answer: C
Rationale: The patient is in severe respiratory distress with hypoxemia. The first priority
in any patient with inadequate oxygenation is to apply high-flow oxygen. A
non-rebreather mask at 15 liters per minute is the appropriate initial intervention to
address the life-threatening hypoxemia before moving to other treatments such as
CPAP or medications.
Question 2: A 24-year-old male was struck in the face with a baseball bat. He has
significant oral bleeding, loose teeth, and is gurgling. His Glasgow Coma Scale score is
8. Which airway management technique is most appropriate for this patient?
A. Insert an oropharyngeal airway and apply high-flow oxygen via non-rebreather mask
B. Perform rapid sequence intubation with in-line spinal stabilization
C. Insert a nasopharyngeal airway and ventilate with a bag-valve mask
D. Position the patient in the recovery position and suction the oropharynx
Correct Answer: B
Rationale: A patient with a Glasgow Coma Scale score of 8 or less cannot protect their
own airway and requires definitive airway management. Given the facial trauma, oral
bleeding, and gurgling, rapid sequence intubation with in-line spinal stabilization is
indicated. Oropharyngeal and nasopharyngeal airways are insufficient for a patient with
this level of altered mental status and significant facial trauma.
,Question 3: You are managing a 45-year-old female with status asthmaticus. After
administering albuterol and ipratropium bromide via nebulizer, her respiratory rate
remains 36, she is unable to speak in full sentences, and her oxygen saturation is 88%.
Breath sounds are nearly absent bilaterally. What is the next most appropriate
intervention?
A. Administer magnesium sulfate 2 grams intravenously over 10 minutes
B. Prepare for immediate rapid sequence intubation
C. Administer epinephrine 0.3 mg intramuscularly
D. Increase the albuterol dose to 10 mg continuous nebulization
Correct Answer: A
Rationale: Magnesium sulfate is indicated for severe asthma exacerbations that are
refractory to initial beta-agonist and anticholinergic therapy. It acts as a bronchodilator
and is recommended before intubation in patients who are deteriorating but not yet in
respiratory failure. Intubation is reserved for patients with altered mental status or
respiratory arrest.
Question 4: A 67-year-old male with chronic obstructive pulmonary disease presents
with respiratory distress. He is alert, his respiratory rate is 28, and his oxygen saturation
is 86%. He is receiving oxygen via nasal cannula at 2 liters per minute. Which statement
best describes the appropriate oxygen titration for this patient?
A. Maintain oxygen saturation between 88% and 92% to avoid suppressing the hypoxic
drive
B. Increase oxygen to achieve a saturation of at least 96% regardless of respiratory rate
C. Maintain the current flow rate because COPD patients cannot tolerate higher oxygen
levels
, D. Apply a non-rebreather mask at 15 liters per minute to correct hypoxemia rapidly
Correct Answer: A
Rationale: Patients with chronic obstructive pulmonary disease may have a blunted
hypoxic respiratory drive and are at risk for hypercapnic respiratory failure if
over-oxygenated. The target oxygen saturation for COPD patients is typically 88% to
92%. This provides adequate tissue oxygenation while minimizing the risk of carbon
dioxide retention and respiratory depression.
Question 5: During rapid sequence intubation of a trauma patient, you successfully
place an endotracheal tube. Upon auscultation, breath sounds are absent over the left
chest and are present over the right chest and epigastrium. The end-tidal carbon dioxide
detector shows minimal color change. What is the most likely cause of these findings?
A. Right mainstem bronchus intubation
B. Esophageal intubation with a large gastric air bubble
C. Tension pneumothorax on the left side
D. Aspiration of gastric contents into the left lung
Correct Answer: B
Rationale: Absent breath sounds over the left chest with present sounds over the right
chest and epigastrium, combined with minimal end-tidal carbon dioxide detection,
strongly indicates esophageal intubation. The breath sounds heard over the right chest
are likely transmitted gastric sounds. The endotracheal tube must be removed
immediately and the patient ventilated with a bag-valve mask before reattempting
intubation.