Cholesterol is deposited in the artery walls. We take blood from a vein to check cholesterol. We never test blood from an artery.The blood in this vein also contains all parts like LDL / VLDL / HDL / Triglyceride.But we have never heard of a case of heart disease caused by cholesterol deposits in a vein.If there is no coronary artery, the coronary artery is blocked. Have you noticed this?
