Abnormal EKG for years yet normal Lexiscan.

[Riveroaksfarm]

I have had abnormal EKGs for 20 years with results stating "Abnormal EKG. Sinus rhythm. Evidence of inferior infarct, age unknown." I am also a type II diabetic under control. My new GP insisted I see a cardiologist who insisted on a stress test (I have had them before). The test he chose with no input from me was a Lexiscan. The results state my heart is perfectly normal. My GP states a lexiscan is not the best test for a diabetics. I am confused. Anyone have information?

[bobthom]

Just to add a few more tidbits, an EKG measures electrical impulses.  Your heart contracts from an electrical impulse that kind of washes down across your heart through channels of cells.  It is picking up an interruption of the signal indicating some cell damage.  The nuclear perfusion test (stress test) looks at blood flow through the viens that supply your heart with oxygen.  Part of the results are usually provided in a graphic form, concentic disks with blacked out areas where there is lack of blood flow.  If you haven't seen it ask your doctor for a copy.  Pretty interesting and can be pretty scary.  The test also provides a number of measurements, each with its own meaning/indication.
Disclaimer:  I am NOT a doctor.  You should seek the advice of a licensed medical professional.  And as always, batteries not included, some assembly may be required.

[bobthom]

Lexiscan is a prescription drug given through an IV line that increases blood flow through the arteries of the heart during a cardiac nuclear stress test. Lexiscan is given to patients when they are unable to exercise adequately for a stress test.  Not sure if there may be interactions with insulin but the results of the stress test should not be impacted.  Sounds like you had a mild heart attack a long time ago so periodic monitoring is usually done.  Good news though, your heart is still OK!!!   Disclaimer:  I am not a doctor.  You should seek the advice of a licensed professional.  Batteries not included.  Some assembly may be required.