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Pharmacology · Anticoagulants
Sample itemWhat drug reverses unfractionated heparin?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
B. Protamine sulfate
The central Anticoagulants concept identifies Protamine sulfate as the best answer because it directly explains the mechanism, indication, adverse effect, or organism feature described.
Option by option
A. Atropine
Atropine is unsupported by the mechanism or clinical clue in the stem.
B. Protamine sulfate (correct)
Correct. Protamine sulfate matches the decisive point in this scenario.
C. Naloxone
Naloxone has another context but is not the most appropriate answer here.
D. Vitamin K
Vitamin K does not fit the stated anticoagulants relationship.
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.