Total cholesterol

Definition

Total cholesterol is the combined amount of cholesterol in the blood, including low-density lipoprotein (LDL), high-density lipoprotein (HDL), and very-low-density lipoprotein (VLDL). It is an important indicator for cardiovascular health.

5 Must Know Facts For Your Next Test

1. Total cholesterol levels are measured in milligrams per deciliter (mg/dL) of blood.
2. A desirable total cholesterol level is below 200 mg/dL.
3. Levels between 200-239 mg/dL are considered borderline high, while levels of 240 mg/dL and above are considered high.
4. High total cholesterol can lead to atherosclerosis, increasing the risk of heart disease and stroke.
5. Pharmacological interventions such as statins are often used to lower high total cholesterol levels.

Review Questions

• What components make up the total cholesterol measurement?
• What is considered a desirable range for total cholesterol levels?
• Why is it important to monitor and manage high total cholesterol?

Related terms

Low-Density Lipoprotein (LDL): Often referred to as 'bad' cholesterol, LDL can build up in the walls of arteries, leading to atherosclerosis.

High-Density Lipoprotein (HDL): Known as 'good' cholesterol, HDL helps remove other forms of cholesterol from the bloodstream.

Statins:

A class of drugs used to lower blood cholesterol levels by reducing the production of cholesterol in the liver.