What it measures
Lipids Blood Tests
Clinical significance
Total cholesterol reflects the overall amount of cholesterol in the blood. It includes low-density lipoprotein (LDL, or “bad” cholesterol) and high-density lipoprotein (HDL, or “good” cholesterol).
Cholesterol is a waxy, fat-like substance found in all cells of the body and is essential for normal physiological functions. However, elevated levels can lead to its accumulation in the walls of arteries, contributing to their narrowing and increasing cardiovascular risk.
🔍 What levels are considered optimal?
🩺 Total cholesterol and cardiovascular health:
Elevated total cholesterol levels are associated with the gradual buildup of fatty deposits (plaques) in blood vessels. Over time, this process can reduce blood flow and increase the risk of coronary artery disease, heart attack, and stroke.
Total cholesterol is typically evaluated together with LDL and HDL levels as part of a lipid profile to provide a more complete picture of cardiovascular risk.
↓ What does a low total cholesterol level mean?
Lower total cholesterol levels are generally considered favorable and are associated with lower cardiovascular risk. In some cases, very low levels may be linked to nutritional deficiencies, liver conditions, or other underlying factors.
↑ What does a high total cholesterol level mean?
Elevated total cholesterol levels are linked to a higher risk of atherosclerosis and cardiovascular disease. This may reflect higher LDL levels, lower HDL levels, or a combination of both, as well as lifestyle and metabolic factors.
Regular monitoring of total cholesterol helps assess cardiovascular risk and detect changes early, even in the absence of symptoms.
References:
1. https://jamanetwork.com/journals/jama/fullarticle/182557?__cf_chl_tk=KOyoe8s7enDwscoH0_81M3kaU66JkTK5593qD60rEZc-1777286238-1.0.1.1-bM4pt3t1_9gII3PSYtKKUHbeNv46cSVsPBjrc9ybYM4
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