How to know if your arteries are blocked: 4 non-invasive tests doctors recommend to spot hidden heart risks early

Heart disease is often called a “silent killer,” and for good reason. In India, smaller body frames mean coronary arteries are naturally narrower, making them more prone to early blockage. The tricky part? Symptoms of blocked arteries are often subtle and hard to spot. Eating well and living a healthy lifestyle help, but they aren’t always enough.

In a recent video, Cardiovascular Surgeon Dr Jeremy London shared four essential non-invasive tests that can help detect blocked arteries early and reduce the risk of serious heart problems.

1. Track Your Blood Pressure Regularly

High blood pressure is often called a “silent killer” for a reason. According to the World Health Organisation (WHO), only around 12% of Indians have their blood pressure under control.


Dr London explains that lifestyle changes can influence blood pressure, but uncontrolled hypertension can damage artery walls over time. This leads to fatty deposits building up in the arteries, increasing the risk of blockage. Regular monitoring of blood pressure is crucial for early detection and prevention.

2. Advanced Blood Panel to Detect Hidden Risks

A standard blood test checks basic cholesterol and blood sugar, but an Advanced Blood Panel goes much further. This comprehensive set of tests can identify hidden risks like:

• Number and type of cholesterol particles
• Inflammation in blood vessels
• Blood clotting tendencies

Dr London points out that even if cholesterol appears normal, people can still develop blocked arteries, which may raise the risk of heart attack.

3. DEXA Scan – Measure Dangerous Visceral Fat

Visceral fat, the fat around internal organs in the abdomen, is a major risk factor for arterial blockage. Dr London describes it as “an engine for inflammation.”

The DEXA Scan (Dual-Energy X-ray Absorptiometry) measures levels of visceral fat in the body. This is crucial because visceral fat releases inflammatory proteins into the bloodstream, damaging the endothelium, the delicate inner lining of arteries.

4. VO2 Max Test – A Key Indicator of Heart Health

The VO2 Max Test, which measures maximum oxygen uptake during exercise, is considered one of the most powerful indicators of cardiovascular fitness and longevity.

While commonly used by athletes, cardiologists now recommend this test for the general population as well. A low VO2 Max can signal reduced cardiovascular efficiency and an increased risk of arterial blockage.

Blocked arteries can be silent and dangerous, but early detection is possible.

Regular blood pressure checks, advanced blood tests, DEXA scans, and the VO2 Max test can help identify risks before they become serious.

Keeping an eye on these indicators, alongside a healthy lifestyle, is essential to protect your heart and live a longer, healthier life.