Based on the same lipid results (TC 400, TG 300, HDL 100), how would this LDL-C be categorized?

Based on the same lipid results (TC 400, TG 300, HDL 100), how would this LDL-C be categorized?

• A. High
• B. Optimal
• C. Desirable
• D. Borderline

Answer: (A)

When you estimate LDL-C from a lipid panel, you use the Friedewald equation: LDL-C ≈ total cholesterol − HDL − (triglycerides ÷ 5), provided triglycerides are under 400 mg/dL. Plugging in the numbers: 400 − 100 − (300 ÷ 5) = 400 − 100 − 60 = 240 mg/dL. An LDL-C of 240 mg/dL is far above the optimal/desirable range. In standard categories, such a value falls into the very high range, indicating markedly elevated cardiovascular risk. Among the given options, this would be labeled as High. This reflects a severe elevation that typically prompts urgent clinical attention and treatment decisions.

When you estimate LDL-C from a lipid panel, you use the Friedewald equation: LDL-C ≈ total cholesterol − HDL − (triglycerides ÷ 5), provided triglycerides are under 400 mg/dL. Plugging in the numbers: 400 − 100 − (300 ÷ 5) = 400 − 100 − 60 = 240 mg/dL.

An LDL-C of 240 mg/dL is far above the optimal/desirable range. In standard categories, such a value falls into the very high range, indicating markedly elevated cardiovascular risk. Among the given options, this would be labeled as High. This reflects a severe elevation that typically prompts urgent clinical attention and treatment decisions.