Lipid and Cholesterol Tests Your Quick Guide


Cholesterol and lipid profile tests are among the most important medical exams for assessing heart and vascular health. High cholesterol or elevated triglycerides usually show no symptoms, yet they are major risk factors for heart disease and stroke. That’s why doctors recommend routine testing—especially after the age of 40 or if you have certain risk factors.In this Dalili Medical guide, we break down everything you need to know about cholesterol and lipid tests: the different types, how to interpret your results, and how to prepare properly to ensure accurate outcomes.

What Is a Lipid Profile Test?
A lipid profile (or cholesterol test) is a blood test that measures different types of fats in the body, including:

  • Total Cholesterol

  • LDL (Low-Density Lipoprotein) – the “bad” cholesterol

  • HDL (High-Density Lipoprotein) – the “good” cholesterol

  • Triglycerides

Why Is a Lipid Test Important?
It helps detect early risks of:

  • Atherosclerosis (artery hardening)

  • Coronary heart disease

  • Stroke

  • Genetic lipid disorders

Who Should Get a Cholesterol Test?

  • Everyone over age 40 (every 3–5 years)

  • People with diabetes or high blood pressure

  • Those with a family history of heart disease

  • People with obesity or metabolic syndrome

  • Smokers or individuals with a sedentary lifestyle


Types of Lipids Measured

1️⃣ Total Cholesterol
Represents the total amount of cholesterol in your blood.
Normal level: Less than 200 mg/dL

2️⃣ LDL ("Bad") Cholesterol
Builds up in artery walls, increasing the risk of heart blockage.
Ideal level: Less than 100 mg/dL
⚠️ 160 mg/dL or higher = High cardiovascular risk

3️⃣ HDL ("Good") Cholesterol
Helps remove bad cholesterol from the blood.
Ideal level:

  • Men: Over 40 mg/dL

  • Women: Over 50 mg/dL
    ⚠️ Less than 40 mg/dL = Higher heart risk

4️⃣ Triglycerides
A type of fat stored in the body, often elevated due to excess calories or sugar.
Normal level: Less than 150 mg/dL
⚠️ Over 200 mg/dL = Increased risk of heart disease


When Is a Lipid Test Needed?

  • During your routine annual checkup

  • Before major surgeries

  • When starting cholesterol medications

  • If metabolic syndrome or fatty liver is suspected


⚠️ Do You Need to Fast Before the Test?
✅ Yes, fasting for 9 to 12 hours (water only) is usually required.
Fasting ensures accurate triglyceride readings.


 How to Prepare for a Lipid Profile Test:

  • Avoid eating or drinking anything except water before the test

  • Inform your doctor or lab about any medications you're taking

  • Stay calm and relaxed before the blood draw, as stress can impact results

 Lipid Profile & Cholesterol Test Results Explained

Test Normal Borderline Risk High Risk
Total Cholesterol Less than 200 mg/dL 200–239 mg/dL 240 mg/dL or more
LDL (“Bad” Cholesterol) Less than 100 mg/dL 100–159 mg/dL 160 mg/dL or more
HDL (“Good” Cholesterol) More than 60 mg/dL 40–59 mg/dL Less than 40 mg/dL
Triglycerides Less than 150 mg/dL 150–199 mg/dL 200 mg/dL or more

 


Can You Improve Your Cholesterol Levels?
Yes — with healthy lifestyle changes:

  • Cut down on saturated fats (fried food, fatty meats, butter)

  • Eat healthy fats (olive oil, avocado, nuts)

  • Exercise for at least 30 minutes a day

  • Quit smoking

  • Limit sugar and sugary drinks

  • Maintain a healthy body weight


❓ Frequently Asked Questions

Is a cholesterol test painful or complicated?
No — it's a simple blood test done by drawing a small sample from a vein.

Can I do the test at home?
Yes, there are home-testing devices available, but lab tests are more accurate and reliable.

Does high cholesterol cause symptoms?
Usually not. That’s why it’s called a “silent killer.” Regular testing is the only way to detect it early.


✅ Final Thoughts

Lipid and cholesterol tests are essential for protecting your heart and arteries. Don’t wait for symptoms to appear — the earlier an imbalance is detected, the better your chances of prevention and treatment.

Make this test a part of your annual health check-up, and always discuss the results with your doctor to manage your cholesterol effectively.