NCLEX RN Questions Safety and Infection Control Related

Review NCLEX RN Questions Safety and Infection Control related questions and content

A client receiving prescribed heparin therapy for a diagnosis of an acute myocardial infarction has an activated partial thromboplastin time (aPTT) value of 100 seconds. Before reporting the results to the primary health care provider, the nurse verifies that which medication is available for use if prescribed?

  • A. Vitamin \mathrm{K
  • B. Vitamin B_{12
  • C. Methylene blue
  • D. Protamine sulfate
Correct Answer: D

Rationale: Heparin is an anticoagulant. Therapeutic values of the aPTT for clients on heparin range between 60 and 70 seconds, depending on the control value. A value of 100 seconds indicates that the client has received too much heparin and is at risk for bleeding. The antidote for heparin overdosage is protamine sulfate and may be prescribed. Vitamin \mathrm{K is the antidote for warfarin sodium overdosage. Methylene blue is an antidote for cyanide poisoning. Vitamin \mathrm{B}_{12 is used to treat clients with pernicious anemia.