Originally Posted by php111
... they said the cardiovascular stress with treadmill was functional capacity ... what does functional capacity means?
The doctor tries to measure your functional capacity, or how much stress your cardiovascular system can be put under.
When you had the test, did the doctor stop it early, or did the doctor challenge you with faster and more inclined testing? Did you get wiped out, or suffer from more significant symptoms before the test was supposed to be over?
Does it mean I'm fine? Or does it mean there are problems?
It depends upon how well you did on the test. If the test had to be stopped early, or if you suffered from increased symptoms, it might mean that you have some CAD.
If it means I'm fine then why is there a need for a nuclear stress test with medicine?
I would guess, and it's only a non-professional guess, the doctor observed that your functional capacity was less than acceptable according to the ekg, your blood pressure, your heart rate, your fatigue, etc, during the test and he wants a more definitive test.
It could also mean that your doctor is trying to increase his revenues by sending you for more testing, whether warranted or not. It could also mean that your doctor did not do too good in medical school.
Best of luck and health to you!