Cholesterol / HDL Ratio
Overview
The Cholesterol / HDL Ratio test measures the proportion of total cholesterol to High-Density Lipoprotein (HDL) cholesterol in the blood. HDL is known as the “good cholesterol” because it helps remove excess cholesterol from the bloodstream. This ratio is an important indicator of cardiovascular health and helps assess the risk of heart disease and stroke.
Why This Test is Done
- To evaluate overall heart health
- To assess the risk of cardiovascular disease
- To monitor patients with high cholesterol levels
- To track response to cholesterol-lowering treatment
- As part of routine health screening or lipid profile assessment
Symptoms & Conditions Associated
Doctors may recommend this test if a person has:
- High blood pressure
- Obesity or overweight
- Diabetes
- Family history of heart disease
- Smoking habits
- Sedentary lifestyle
- Chest pain or cardiovascular symptoms
Specimen Required
Preparation
- Fasting for 9–12 hours may be recommended if done along with a complete lipid profile.
- Avoid fatty meals and alcohol before the test.
Normal Reference Range
| Risk Level |
Cholesterol / HDL Ratio |
| Ideal |
Below 3.5 |
| Average Risk |
3.5 – 5.0 |
| High Risk |
Above 5.0 |
Reference ranges may vary slightly depending on laboratory standards.
Interpretation
-
Lower Ratio: Indicates lower risk of heart disease and better cardiovascular health.
-
Higher Ratio: Suggests increased risk of blocked arteries, heart attack, or stroke.
Clinical Significance
This ratio provides a better assessment of heart disease risk than total cholesterol alone. It helps clinicians understand the balance between harmful cholesterol and protective HDL cholesterol.
Method
- Calculated from Total Cholesterol and HDL Cholesterol values obtained through automated biochemical analysis.
Reporting Time
