Will echocardiogram show blockages in heart? i'm 6ft, 150lbs, athlete (39y/o) and had one 5 years ago. how often are they 'good' for?

Unusual test for age: I am not a cardiologist but an echo for 39 yo is unusual unless they suspected a type of infection, murmur, or enlarged heart. These are all unusual conditions for a 39 year old. If that test was ordered it seems that you should have had followup and an explanation as to the reason. I am 58 and have never had an echo. This is not a routine test. You should talk this over with your primary doctor.

No: An echocardiogram at rest will not show blockage. If the blockage has caused damage 9heart attack) this may be seen on the echo as an area of abnormal wall motion. An echo done during a stress test (stress echo) can indirectly indicate if a portion of the heart is suffering from reduced blood flow - which would indicate a significant blockage.