Thanks for writing in. I am a qualified and certified cardiologist. If the diagnosis of heart attack
was made by a qualified doctor, it is never made non seriously for one who diagnoses knows the implications. Moreover, blood clots
in hand could be in veins or arteries. If these were in the veins then veins drain into lung which acts as filter so these can not result is heart attack if these were in arteries then arteries arise from great vessel aorta
which originates from heart. In some cases of heart attack one can have clots in hand arteries as a result of heart attack it can not be other way round. Patients are advised what precautions they are supposed to take by the TMT lab where you have been given appointment. If you have not received these or have any other doubt I will suggest please call them because precautions vary from individual to individual and protocol being followed in a given patient. Good Luck.
With Best Wishes
Dr Anil Grover