What it is: A total cholesterol test measures the combined amount of cholesterol carried by all lipoproteins (LDL, HDL, and VLDL) in the blood, as part of a lipid panel.
Why it's ordered: Ordered as routine cardiovascular risk screening or to monitor cholesterol-lowering treatment, typically alongside LDL, HDL, and triglycerides rather than alone.
What it detects: Total cholesterol gives a general overview of cardiovascular risk, but it's possible to have a "normal" total cholesterol while still having high LDL, which is why the individual components matter more than the total alone.
Collection & prep: A standard blood draw from a vein in the arm as part of a lipid panel; fasting for 9–12 hours may be requested depending on the lab.
Results:
Desirable – generally below 200 mg/dL
Borderline to high – 200 mg/dL and above; interpreted alongside LDL and HDL to determine actual risk
Possible complications of high cholesterol: Persistently high cholesterol raises the risk of atherosclerosis, heart attack, and stroke; abnormally low cholesterol is rare but can occasionally reflect malnutrition or an underlying condition.
Statements made in the Clinical Manual have not been evaluated by the FDA. The products mentioned are not intended to diagnose, treat, cure or prevent any disease.
