Question: what are tests for heart?
Answer: Blood tests. When your muscle has been damaged, as in a heart attack, your body releases substances in your blood. ... 
Electrocardiogram (ECG) ... 
Exercise stress test. ... 
Echocardiogram (ultrasound) ... 
Nuclear cardiac stress test. ... 
Coronary angiogram. ... 
Magnetic resonance imaging (MRI) ... 
Coronary computed tomography angiogram (CCTA)