1. What is LDL Cholesterol?

LDL (Low-Density Lipoprotein) cholesterol, often called "bad cholesterol," can build up in the walls of your arteries, making them hard and narrow. Monitoring LDL levels is crucial for cardiovascular health assessment and prevention.

2. How Does the Calculator Work?

The calculator uses the Friedewald formula:

Where:

• Total Cholesterol — Measured in mg/dL
• HDL — High-Density Lipoprotein (mg/dL)
• Triglycerides — Measured in mg/dL

Note: This formula is valid when triglyceride levels are below 400 mg/dL. For higher levels, direct measurement is recommended.

3. Importance of LDL Calculation

Details: LDL cholesterol calculation helps assess cardiovascular risk, guide treatment decisions, and monitor the effectiveness of cholesterol-lowering therapies and lifestyle modifications.

4. Using the Calculator

Tips: Enter all values in mg/dL. Ensure triglyceride levels are below 400 mg/dL for accurate calculation. Fasting blood samples provide the most accurate results.

5. Frequently Asked Questions (FAQ)

Q1: What are optimal LDL levels?
A: Optimal LDL is less than 100 mg/dL. For very high-risk patients, less than 70 mg/dL may be recommended.

Q2: When is the Friedewald formula not accurate?
A: When triglyceride levels exceed 400 mg/dL, in non-fasting samples, or in patients with certain metabolic disorders.

Q3: How often should LDL be checked?
A: Adults should have cholesterol checked every 4-6 years. Those with risk factors may need more frequent testing.

Q4: What factors affect LDL levels?
A: Diet, exercise, weight, genetics, medications, and certain medical conditions can all influence LDL levels.

Q5: Are there limitations to calculated LDL?
A: Yes, calculated LDL may be less accurate in certain populations. Direct LDL measurement is preferred when precise values are needed.