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General Surgery · Postoperative complications: atelectasis
Sample itemOn the first postoperative day after upper abdominal surgery, a patient has low-grade fever, reduced basal breath sounds, and mild hypoxemia but no focal crackles or purulent sputum. Which complication is most likely?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
B. Postoperative atelectasis
Atelectasis from shallow breathing, pain, and immobility is common after abdominal surgery and causes basal volume loss and mild hypoxemia. Analgesia, mobilization, and lung-expansion measures are important preventive and therapeutic steps.
Option by option
A. Lobar pneumonia
Pneumonia usually produces fever, productive cough, and focal infectious signs.
B. Postoperative atelectasis (correct)
Correct. Early basal hypoventilation without infective features is typical of atelectasis.
C. Acute pulmonary edema
Pulmonary edema commonly has crackles and signs of fluid overload or cardiac dysfunction.
D. Pulmonary embolism
Pulmonary embolism often presents with acute dyspnea, pleuritic pain, or unexplained tachycardia.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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