Practice Quiz

CMC Cardiac Medicine Certification

Category - CMC

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A patient with MI is receiving heparin therapy. The nurse notes that the laboratory results for activated partial thromboplastin time value is 110 seconds. The nurse should know that before reporting the results to the physician, the following must be immediately available if prescribed?
  1. Vitamin K
  2. Vitamin B12
  3. Protamine Sulfate
  4. Coumadin
Explanation
Answer- C - The nurse must ensure that protamine sulphate is available if prescribed. The nurse must have the initiative to keep antidotes available in case of emergency such as over dosage. The therapeutic value of a PTT on heparin therapy is between 60-70 seconds. The antidote for heparin over dosage is protamine sulfate. Vitamin K is the antidote for warfarin. Vitamin B12 is used to treat pernicious anemia.
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