Which set of measurements is typically included in a routine lipid profile?

• A. Total cholesterol, triglyceride, fatty acid, chylomicron
• B. Total cholesterol, triglyceride, HDL cholesterol, phospholipid
• C. Triglyceride, HDL cholesterol, LDL cholesterol, chylomicron
• D. Total cholesterol, triglyceride, HDL cholesterol, LDL cholesterol

Answer: (D)

In a routine lipid profile, the goal is to capture the main lipid components that reflect cardiovascular risk. The standard panel focuses on total cholesterol, triglycerides, HDL cholesterol, and LDL cholesterol. LDL cholesterol is usually reported because it’s a primary driver of atherosclerotic risk, and in most clinics it’s calculated from the other values using the common Friedewald equation (LDL-C = TC − HDL-C − TG/5) when triglycerides aren’t exceptionally high. Other lipid measurements, like fatty acids, chylomicrons, or phospholipids, aren’t part of the everyday lipid panel. They may be measured in specialized tests, but not in routine screening. Therefore, the set that includes total cholesterol, triglycerides, HDL cholesterol, and LDL cholesterol is the standard routine profile.