1. What is Total Cholesterol?

Total cholesterol is the sum of all cholesterol types in the blood, including HDL (high-density lipoprotein), LDL (low-density lipoprotein), and VLDL (very low-density lipoprotein). It provides an overall measure of cholesterol levels in the body.

2. How Does the Calculator Work?

The calculator uses the total cholesterol formula:

Where:

• \( HDL \) — High-density lipoprotein (mg/dL)
• \( LDL \) — Low-density lipoprotein (mg/dL)
• \( VLDL \) — Very low-density lipoprotein (mg/dL)

Explanation: This formula calculates the total amount of cholesterol circulating in the bloodstream by summing up all the major cholesterol components.

3. Importance of Cholesterol Calculation

Details: Monitoring total cholesterol levels is essential for assessing cardiovascular health and determining the risk of heart disease and stroke.

4. Using the Calculator

Tips: Enter HDL, LDL, and VLDL values in mg/dL. All values must be valid (≥0). The calculator will sum these values to provide the total cholesterol level.

5. Frequently Asked Questions (FAQ)

Q1: What are normal total cholesterol levels?
A: Desirable total cholesterol is below 200 mg/dL. Borderline high is 200-239 mg/dL, and high is 240 mg/dL and above.

Q2: Why is HDL considered "good" cholesterol?
A: HDL helps remove cholesterol from arteries and transport it back to the liver for processing and elimination.

Q3: Why is LDL considered "bad" cholesterol?
A: LDL can build up in artery walls, forming plaques that narrow arteries and increase heart disease risk.

Q4: What is VLDL cholesterol?
A: VLDL carries triglycerides in the blood and can contribute to plaque buildup when elevated.

Q5: How often should cholesterol be checked?
A: Adults should have cholesterol checked every 4-6 years, or more frequently if risk factors exist.