The most economical test to diagnose a life threatening and life saving condition - Heart attack.
The best test to look into someone’s heart and identify the problem accurately in children and adults both.
The best non invasive test to identify the probability of blockages in one’s heart and also look at functional capacity of the individual.
The definitive test to diagnose Blood pressure in any individual beyond 18 years of age.
This gives 24 hour recording of one’s ECG and heart rate to identify any electrical abnormality.