Understanding Calcium Score: Normal vs Optimal Ranges
Also known as: coronary artery calcium score, cac score, agatston score
?What is Calcium Score?
The calcium score is a measure of calcified plaque in the coronary arteries, determined through non-contrast CT imaging of the heart. It quantifies the amount of calcium deposits using the Agatston scoring method, where higher scores indicate greater plaque burden. This test helps assess the extent of coronary artery disease and cardiovascular risk without requiring invasive procedures.
!Why It Matters
Coronary calcium is a marker of atherosclerotic plaque and may suggest increased risk of heart attack and coronary events. The calcium score can help refine cardiovascular risk assessment in individuals without known coronary disease and guide decisions about preventive treatment. An elevated score could indicate the need for more aggressive risk factor management and lifestyle modifications.
Reference Ranges
| Range Type | Min | Max | Unit | Note |
|---|---|---|---|---|
| Lab Normal | — | — | Agatston Units | Standard lab reference range |
| Optimal | 0 | 0 | Agatston Units | Evidence-based optimal range for health |
| Longevity Target | 0 | 0 | Agatston Units | Per longevity medicine research (Attia et al.) |
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
- Heart palpitations
- Fatigue with physical activity
- Jaw or arm pain during stress
How to Improve Your Levels
- 1Maintain a heart-healthy diet low in saturated fats and sodium
- 2Engage in regular aerobic exercise (150 minutes per week recommended)
- 3Manage blood pressure through lifestyle changes and medication if needed
- 4Control cholesterol levels through diet and medical management
- 5Quit smoking and avoid secondhand smoke exposure
- 6Manage stress through relaxation techniques and mindfulness
When to Test
Calcium scoring is typically recommended for asymptomatic adults aged 40–75 years with intermediate cardiovascular risk or for those with a family history of premature coronary disease. It may also be used to guide treatment decisions in individuals with borderline risk factors and to monitor changes over time in those with known coronary disease.
Related Biomarkers
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