Why must nitroglycerin be discontinued in a patient who is about to undergo stre!


Question:

Why must nitroglycerin be discontinued in a patient who is about to undergo stress testing?


Answers:

Multiple causes are there:
1) nitrates cause vasodilatation, and can result in fall of BP, and it increases heart rate, and can result in life threatening complications of acute nature .
2)since the objective is to assess maximum target heart rate attainable under normal condition, it may interfere with the test and a FALSE RESULT can be achieved.
3)even prior to anesthesia, all cardiac medications are stopped.
Hope you have got an insight view.




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