1. What is the TC/HDL Ratio?

The TC/HDL ratio is a calculated value that compares total cholesterol to HDL (high-density lipoprotein) cholesterol levels. It's used as a marker for cardiovascular risk assessment, with lower ratios indicating better heart health.

2. How Does the Calculator Work?

The calculator uses the simple formula:

Where:

• \( TC \) — Total cholesterol (mg/dL)
• \( HDL \) — HDL cholesterol (mg/dL)

Explanation: This ratio provides a better cardiovascular risk prediction than either value alone, as it accounts for both "bad" and "good" cholesterol components.

3. Importance of TC/HDL Ratio

Details: The TC/HDL ratio is a strong predictor of cardiovascular disease risk. A higher ratio indicates greater risk, while a lower ratio suggests better cardiovascular health.

4. Using the Calculator

Tips: Enter total cholesterol and HDL cholesterol values in mg/dL. Both values must be positive numbers greater than zero for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: What is a good TC/HDL ratio?
A: Generally, a ratio below 5:1 is considered good, with optimal being below 3.5:1. Higher ratios indicate increased cardiovascular risk.

Q2: How often should I check my cholesterol levels?
A: Adults should have their cholesterol checked every 4-6 years, or more frequently if you have risk factors for heart disease.

Q3: Can lifestyle changes improve my TC/HDL ratio?
A: Yes, regular exercise, a heart-healthy diet, maintaining a healthy weight, and not smoking can all help improve your ratio.

Q4: Are there limitations to this ratio?
A: While useful, the TC/HDL ratio doesn't account for other important factors like LDL particle size, triglycerides, or other cardiovascular risk factors.

Q5: Should I fast before cholesterol testing?
A: For the most accurate results, a 9-12 hour fast is typically recommended before cholesterol testing, though non-fasting tests can also provide valuable information.