Homocysteine

To detect folate or vitamin B12-deficiency, to asess if a person is at an increased risk for a heart attack or a cardiac stroke , to diagnose homocystinuria which is a rare inherited disorder.

When vitamin B12 or folate deficiency is suspected in a person, if a person had a heart attack or stroke with no associated risk factors, as part of newborn screening done routinely or in a suspected case of Homocystinuria.