A lipoprotein test measures the levels of lipoproteins in your blood, which carry cholesterol and triglycerides. It helps assess your risk for heart disease. The test typically includes LDL (bad cholesterol), HDL (good cholesterol), total cholesterol, and triglycerides. Normal ranges are: LDL below 100 mg/dL, HDL above 60 mg/dL, total cholesterol below 200 mg/dL, and triglycerides below 150 mg/dL. Results are usually available within a day. The cost varies by location and provider but generally ranges from $20 to $100 without insurance. This simple blood test is important for monitoring heart health and guiding lifestyle or treatment changes if needed.