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Pathology · Inflammation and repair: wound dehiscence
Sample itemTen days after abdominal surgery, an obese diabetic patient on long-term prednisolone has the wound open up with a coughing fit. Which factor most directly weakens the repair?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
D. Glucocorticoid inhibition of inflammation and collagen synthesis
Glucocorticoids suppress the inflammatory response and collagen synthesis, weakening the wound. Diabetes, obesity and mechanical stress add to the risk. Vitamin C aids healing, so excess does not cause dehiscence.
Option by option
A. High oestrogen levels
Oestrogen is not a recognised cause of impaired wound strength.
B. Excess vitamin C intake
Vitamin C is needed for collagen and does not delay healing.
C. Hyperdynamic wound blood supply
Good blood supply favours healing, whereas poor perfusion delays it.
D. Glucocorticoid inhibition of inflammation and collagen synthesis (correct)
Correct. Steroids impair inflammation and collagen deposition.
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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