Beyond individual lipid values, the ratio of LDL ('bad') to HDL ('good') cholesterol provides further insight into cardiovascular risk. A higher ratio suggests greater risk, while a lower ratio is more protective. Some clinicians find this ratio more useful than absolute values for risk discussion with patients.
This test is used for cardiovascular risk screening, monitoring of cholesterol-lowering therapy, and patient education about heart disease risk. Fasting for 9-12 hours is traditionally recommended for the most accurate lipid measurements. Sample type is serum.