, Question 1
During a primary assessment of a patient with suspected tension
pneumothorax, which set of findings most strongly supports immediate needle
decompression in the field?
A. Tracheal deviation toward the affected side with ipsilateral crackles
B. Severe respiratory distress, unilateral absent breath sounds,
hypotension, and distended neck veins
C. Bilateral wheezing with prolonged expiration and a history of asthma
D. Localized pleuritic chest pain with a friction rub on auscultation
Correct Answer: B - Severe respiratory distress, unilateral absent
breath sounds, hypotension, and distended neck veins
RATIONALE
Tension pneumothorax presents with severe respiratory distress,
unilateral absent breath sounds, hypotension, and distended neck veins
due to mediastinal shift and impaired venous return. Tracheal
deviation is a late and unreliable sign, and wheezing suggests
bronchospasm. Immediate decompression is indicated when these
clinical signs are present.
Question 2
A patient with a history of heart failure presents with dyspnea, orthopnea, and
bilateral basilar crackles. Which pathophysiological mechanism best explains
these findings?
A. Increased pulmonary capillary permeability due to inflammation
B. Left ventricular failure leading to pulmonary venous congestion and
transudation of fluid into alveoli
C. Right ventricular failure causing systemic venous congestion and
peripheral edema
D. Bronchoconstriction and mucous plugging from an acute asthma
exacerbation
Page 2
,Correct Answer: B - Left ventricular failure leading to
pulmonary venous congestion and transudation of fluid into
alveoli
RATIONALE
Left-sided heart failure causes increased pulmonary venous pressure,
leading to transudation of fluid into the alveoli, producing crackles
and orthopnea. Right-sided failure primarily causes systemic
congestion, and asthma would present with wheezing rather than
basilar crackles.
Question 3
Which of the following best describes the correct technique for performing a
head-tilt-chin-lift maneuver in a patient with no suspected spinal injury?
A. Place one hand on the forehead and the other under the chin, then tilt
the head back and lift the chin forward
B. Place both hands on the sides of the head and stabilize the neck while
extending the head
C. Use the jaw-thrust maneuver without head extension to avoid cervical
movement
D. Apply firm pressure on the cricoid cartilage while extending the neck
Correct Answer: A - Place one hand on the forehead and the
other under the chin, then tilt the head back and lift the chin
forward
RATIONALE
The head-tilt-chin-lift is performed by placing one hand on the
forehead to tilt the head back and the fingers of the other hand under
the chin to lift it forward, opening the airway. The jaw-thrust is used
when spinal injury is suspected, and cricoid pressure is unrelated to
airway opening.
Page 3
, Question 4
A patient with a suspected opioid overdose presents with pinpoint pupils,
respiratory depression, and unresponsiveness. After administering naloxone,
which finding indicates a positive therapeutic response?
A. Increased respiratory rate and improved level of consciousness
B. Constricted pupils and decreased heart rate
C. Onset of seizures and muscle rigidity
D. Immediate return of full consciousness without any respiratory change
Correct Answer: A - Increased respiratory rate and improved
level of consciousness
RATIONALE
Naloxone reverses opioid-induced respiratory depression and sedation;
a positive response is indicated by increased respiratory rate and
improved mental status. Pupillary constriction and bradycardia
suggest continued opioid effect, while seizures are not an expected
therapeutic response.
Question 5
Which of the following mechanisms best explains why a patient with a severe
allergic reaction develops hypotension and bronchospasm?
A. IgE-mediated release of histamine and other mediators causing
vasodilation and smooth muscle constriction
B. Direct myocardial depression from histamine release
C. Complement-mediated lysis of red blood cells
D. Increased vagal tone leading to bradycardia and bronchoconstriction
Correct Answer: A - IgE-mediated release of histamine and other
mediators causing vasodilation and smooth muscle constriction
Page 4
During a primary assessment of a patient with suspected tension
pneumothorax, which set of findings most strongly supports immediate needle
decompression in the field?
A. Tracheal deviation toward the affected side with ipsilateral crackles
B. Severe respiratory distress, unilateral absent breath sounds,
hypotension, and distended neck veins
C. Bilateral wheezing with prolonged expiration and a history of asthma
D. Localized pleuritic chest pain with a friction rub on auscultation
Correct Answer: B - Severe respiratory distress, unilateral absent
breath sounds, hypotension, and distended neck veins
RATIONALE
Tension pneumothorax presents with severe respiratory distress,
unilateral absent breath sounds, hypotension, and distended neck veins
due to mediastinal shift and impaired venous return. Tracheal
deviation is a late and unreliable sign, and wheezing suggests
bronchospasm. Immediate decompression is indicated when these
clinical signs are present.
Question 2
A patient with a history of heart failure presents with dyspnea, orthopnea, and
bilateral basilar crackles. Which pathophysiological mechanism best explains
these findings?
A. Increased pulmonary capillary permeability due to inflammation
B. Left ventricular failure leading to pulmonary venous congestion and
transudation of fluid into alveoli
C. Right ventricular failure causing systemic venous congestion and
peripheral edema
D. Bronchoconstriction and mucous plugging from an acute asthma
exacerbation
Page 2
,Correct Answer: B - Left ventricular failure leading to
pulmonary venous congestion and transudation of fluid into
alveoli
RATIONALE
Left-sided heart failure causes increased pulmonary venous pressure,
leading to transudation of fluid into the alveoli, producing crackles
and orthopnea. Right-sided failure primarily causes systemic
congestion, and asthma would present with wheezing rather than
basilar crackles.
Question 3
Which of the following best describes the correct technique for performing a
head-tilt-chin-lift maneuver in a patient with no suspected spinal injury?
A. Place one hand on the forehead and the other under the chin, then tilt
the head back and lift the chin forward
B. Place both hands on the sides of the head and stabilize the neck while
extending the head
C. Use the jaw-thrust maneuver without head extension to avoid cervical
movement
D. Apply firm pressure on the cricoid cartilage while extending the neck
Correct Answer: A - Place one hand on the forehead and the
other under the chin, then tilt the head back and lift the chin
forward
RATIONALE
The head-tilt-chin-lift is performed by placing one hand on the
forehead to tilt the head back and the fingers of the other hand under
the chin to lift it forward, opening the airway. The jaw-thrust is used
when spinal injury is suspected, and cricoid pressure is unrelated to
airway opening.
Page 3
, Question 4
A patient with a suspected opioid overdose presents with pinpoint pupils,
respiratory depression, and unresponsiveness. After administering naloxone,
which finding indicates a positive therapeutic response?
A. Increased respiratory rate and improved level of consciousness
B. Constricted pupils and decreased heart rate
C. Onset of seizures and muscle rigidity
D. Immediate return of full consciousness without any respiratory change
Correct Answer: A - Increased respiratory rate and improved
level of consciousness
RATIONALE
Naloxone reverses opioid-induced respiratory depression and sedation;
a positive response is indicated by increased respiratory rate and
improved mental status. Pupillary constriction and bradycardia
suggest continued opioid effect, while seizures are not an expected
therapeutic response.
Question 5
Which of the following mechanisms best explains why a patient with a severe
allergic reaction develops hypotension and bronchospasm?
A. IgE-mediated release of histamine and other mediators causing
vasodilation and smooth muscle constriction
B. Direct myocardial depression from histamine release
C. Complement-mediated lysis of red blood cells
D. Increased vagal tone leading to bradycardia and bronchoconstriction
Correct Answer: A - IgE-mediated release of histamine and other
mediators causing vasodilation and smooth muscle constriction
Page 4
