LDL Cholesterol
Also known as: LDL; LDL-C
Formal name: Low-density lipoprotein cholesterol
Related tests: Cholesterol; HDL; Triglycerides; Lipid profile; Direct LDL Cholesterol; Cardiac Risk Assessment; Lp(a); Apo A; Apo B; Lp-PLA2
At a Glance
Why Get Tested?
To determine risk of developing heart disease
When to Get Tested?
As part of a regular exam with a cholesterol test or lipid profile or if your screening cholesterol is high
Sample Required?
A blood sample drawn from a vein in the arm or from a fingerstick
Test Preparation Needed?
Laboratory tests for LDL-C generally require a 12-hour fast; only water is permitted.





