Total Cholesterol Formula:
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Total Cholesterol is a measurement that represents the sum of all cholesterol in your blood, including HDL (high-density lipoprotein), LDL (low-density lipoprotein), and VLDL (very low-density lipoprotein) cholesterol. It's an important indicator of cardiovascular health.
The calculator uses the formula:
Where:
Explanation: This formula calculates total cholesterol by summing HDL, LDL, and VLDL cholesterol (estimated as triglycerides divided by 2.2).
Details: Monitoring total cholesterol levels is crucial for assessing cardiovascular risk. High total cholesterol levels may indicate an increased risk of heart disease and stroke, helping guide dietary and lifestyle interventions.
Tips: Enter HDL, LDL, and Triglycerides values in mmol/L. All values must be non-negative numbers. For accurate results, use recent blood test measurements.
Q1: What are healthy total cholesterol levels?
A: Generally, total cholesterol below 5.2 mmol/L is considered desirable, 5.2-6.2 mmol/L is borderline high, and above 6.2 mmol/L is high.
Q2: Why divide triglycerides by 2.2?
A: This conversion estimates VLDL cholesterol, as VLDL carries most triglycerides in the blood and the ratio is approximately 1:2.2.
Q3: When should cholesterol be measured?
A: Fasting blood samples (9-12 hours) provide the most accurate results, as recent meals can affect triglyceride levels.
Q4: Are there limitations to this calculation?
A: This is an estimation. Direct measurement of VLDL may provide more accurate results in certain clinical situations.
Q5: How often should cholesterol be checked?
A: Adults should have cholesterol checked every 4-6 years, or more frequently if risk factors exist or levels are elevated.