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2024 December (Supplementary) (2019 Scheme) · 100 marks · 180 min

Question

Heparin overdosage is treated with:

  • a) Phytonadione
  • b) Epsilon aminocaproic acid
  • c) Protamine sulfate
  • d) Tranexamic acid
Qiii1 marksMCQs

Answer

Correct answer: c) Protamine sulfate

Protamine sulfate is strongly basic and binds the strongly acidic heparin molecule, forming an inactive complex that neutralizes heparin’s anticoagulant effect — fully reversing unfractionated heparin (only partially reversing LMWH). Phytonadione (vitamin K) is the antidote for warfarin, not heparin.

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