Heart health blood tests, at home

LDL below 100 mg/dL (below 70 for diabetics), HDL above 40 (men) / 50 (women), triglycerides below 150, hsCRP below 1, no smoking, BP under 130/80, BMI under 25. Most adults in their 20s should hit most of these naturally — by 40 it usually takes deliberate effort.

No. Troponin is a heart-muscle-damage marker used in emergency rooms to diagnose ongoing heart attacks. It's near-zero in healthy people and isn't a screening test. If you have chest pain or breathlessness, go to a hospital — don't order this as a home test.

High-sensitivity CRP measures low-grade vascular inflammation. Persistently elevated hsCRP doubles heart-attack risk even when cholesterol is normal. It's particularly useful for intermediate-risk patients (where standard scoring is ambiguous). Don't test it while you have an infection — it rises transiently.

If LDL is normal and your other risk factors are minimal, no. If you have a strong family history, diabetes or a previous cardiac event but normal LDL, Apo-B often catches what LDL misses — about 30% of people with normal LDL have elevated Apo-B and higher real risk.

Phlebotomist-collected samples sent to a NABL-accredited lab are the gold standard. Finger-prick "home cholesterol kits" are useful for trend tracking but not for diagnosis. Always confirm an abnormal home reading with a venous blood draw.