Understanding RCA Calcium Score: Normal vs Optimal Ranges

?What is RCA Calcium Score?

The RCA calcium score measures calcium deposits in the right coronary artery using computed tomography imaging, expressed in Agatston units. This is a segment-specific assessment of coronary artery calcification, which reflects atherosclerotic plaque burden. Higher scores indicate greater calcium accumulation and may suggest increased cardiovascular risk in that vessel.

!Why It Matters

Coronary artery calcification is a marker of coronary atherosclerosis and can be associated with increased risk of myocardial infarction and other cardiovascular events. The RCA calcium score specifically quantifies disease burden in the right coronary artery, which supplies a significant portion of the heart. This localized assessment helps cardiologists evaluate regional risk and inform decisions about preventive therapy or further diagnostic testing.

Reference Ranges

Lab normal ranges may vary between laboratories. Optimal and longevity targets are based on research literature and should be interpreted with your physician.

Symptoms of Imbalance

• Chest pain or angina
• Shortness of breath during exertion
• Palpitations or irregular heartbeat
• Jaw or arm pain with physical activity
• Fatigue or decreased exercise tolerance

How to Improve Your Levels

• 1Adopt a heart-healthy diet low in saturated fats and sodium
• 2Engage in regular aerobic exercise (150+ minutes per week)
• 3Manage blood pressure and cholesterol through medication and lifestyle changes
• 4Quit smoking and avoid tobacco exposure
• 5Maintain a healthy weight and manage stress levels
• 6Work with a cardiologist on aspirin or statin therapy if indicated

When to Test

RCA calcium scoring is typically performed as part of coronary artery calcium (CAC) screening in asymptomatic adults aged 40–75 with intermediate cardiovascular risk, or in those with symptoms suggestive of coronary artery disease. It may also be ordered for risk stratification in patients with a family history of early coronary disease.

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