patient receiving a CT scan to look for calcium deposits

What is a calcium score test?

A calcium score test, or coronary calcium score, can provide valuable information about your heart health before you develop symptoms. It is a simple imaging test that can show if you have calcified plaque buildup on your artery walls and, if so, how much. Using this information, your healthcare provider can tell you whether you’re at risk of developing cardiovascular disease or having a heart attack. 

Plaque develops without symptoms, and your score allows you and your provider to develop a treatment plan and other strategies to protect your heart.

visual of an artery with coronary artery disease

Why a coronary calcium score is done

A coronary calcium score uses CT scans to look for calcium deposits, which show up as white spots on the images. The score can help determine whether you may benefit from treatments to address risk factors for coronary artery disease (CAD) and other heart conditions.

Plaque is made of calcium, cholesterol, fat and other substances. It can develop on the walls of your coronary arteries, the important blood vessels that bring oxygen-rich blood to your heart.

The score can help determine whether you may benefit from treatments to address risk factors for coronary artery disease (CAD), which can develop over time from plaque buildup. Plaque in the coronary arteries can also break off to form blood clots, which, in turn, can cause heart attacks.

patient having their blood pressure taken

Who needs a coronary calcium scan?

You can have a calcium score test without a referral if you are a man aged 40 to 65 or a woman aged 45 to 70 and you have one of the following risk factors:

You will need a referral from your healthcare provider if you’re outside the recommended age range.

Your doctor likely won’t recommend coronary calcium scoring if you have had a heart attack, coronary bypass surgery or a coronary stent. In these cases, measuring the amount of calcium in your coronary arteries won’t inform diagnosis or treatment for prior heart events.

How often should you have a calcium score test?

Multiple factors are involved when determining the frequency of calcium score testing, including pre-existing conditions, age and family history. Your healthcare provider will work with you to develop an overall health and management plan that outlines options for frequency of testing based on your needs.

What to expect during a coronary calcium score

​​​​​​​​​​​​​

Preparing for a calcium score test

You don’t need to take any special steps to prepare for a coronary calcium scan. However, you should not drink caffeine or smoke for four hours before your test.

Wear comfortable, loose-fitting clothes because you may need to wear a gown before your CT scan. It’s best to leave jewelry and other metal accessories at home. They can affect the results, so you will be asked to remove them.

During a calcium score test

You will lie down on an exam table that will move into the CT scanner, which will rotate around you to take images of your heart.

Your technologist may ask you to hold your breath periodically to help ensure better images.

The imaging portion of the test takes about 10 to 15 minutes.

After a calcium score test

After a calcium score test, most people can resume their normal activities.

Calcium score results

After your exam, a radiologist will review your images, and you’ll receive a score based on the amount of calcium and plaque found during the test.

  • A coronary calcium score of 0 means you have no calcified plaque, and your risk of having a heart attack due to plaque buildup is relatively low.

If you have CAD or plaque, you’ll receive a positive test.

  • A score between 1 and 100 indicates mild atherosclerosis, or plaque buildup.
  • A score of up to 400 indicates moderate atherosclerosis, or plaque buildup.
  • A score of higher than 400 indicates there is strong atherosclerosis, or plaque buildup. A higher score means there’s more plaque in the coronary arteries and your chance of having a heart attack is greater.

The radiologist will share these results with your healthcare provider.

Next steps

If your coronary calcium score is high, your primary care provider will likely want to address CAD risk factors to prevent a heart attack and protect your heart for the long term. Those lifestyle changes may include:

  • Better controlling diabetes through medications or diabetes management classes
  • Eating a heart-healthy diet that focuses on whole grains, lean protein, fruits and vegetables, and avoids sugar, saturated fat and salt
  • Increasing your physical activity levels
  • Stopping smoking
  • Taking medications to lower your blood pressure
  • Taking statins to lower your cholesterol
  • Your provider may also refer you to a cardiologist for additional testing or procedures to treat plaque buildup.

Find a location near you

You can have a coronary calcium score at many of our locations in Central and North Texas.

Read More
AccentCare Home Health of College Station

AccentCare Home Health of College Station

119 Medical Park Lane Ste C, Huntsville, TX, 77340

AccentCare Home Health Of Fort Worth (Arlington)

AccentCare Home Health Of Fort Worth (Arlington)

700 Highlander Blvd Ste 205, Arlington, TX, 76015

Baylor Scott & White - Hillcrest Infectious Disease Clinic

Baylor Scott & White - Hillcrest Infectious Disease Clinic

50 Hillcrest Medical Blvd MOB1, Ste 104, Waco, TX, 76712

Baylor Scott & White Advanced Cardiovascular and Imaging Consultants

Baylor Scott & White Advanced Cardiovascular and Imaging Consultants

4708 Alliance Blvd Ste 450, Plano, TX, 75093

Baylor Scott & White Advanced Heart Care - Anna

Baylor Scott & White Advanced Heart Care - Anna

450 N Standridge Blvd , Anna, TX, 75409

Baylor Scott & White Advanced Heart Care - Decatur

Baylor Scott & White Advanced Heart Care - Decatur

2401 S FM 51 Ste 200, Decatur, TX, 76234

Baylor Scott & White Advanced Heart Care - Denton

Baylor Scott & White Advanced Heart Care - Denton

3333 Colorado Blvd , Denton, TX, 76210

Baylor Scott & White Advanced Heart Care - Idabel, OK

Baylor Scott & White Advanced Heart Care - Idabel, OK

4 SE Avenue A , Idabel, OK, 74745

Baylor Scott & White Advanced Heart Care - Keller (Satellite)

Baylor Scott & White Advanced Heart Care - Keller (Satellite)

3124 N Tarrant Pkwy Ste 204, Keller, TX, 76177

Baylor Scott & White Advanced Heart Care - McKinney (Satellite)

Baylor Scott & White Advanced Heart Care - McKinney (Satellite)

5236 W University Dr Ste 4450, McKinney, TX, 75482

Baylor Scott & White Advanced Heart Care - Mt Pleasant (Satellite)

Baylor Scott & White Advanced Heart Care - Mt Pleasant (Satellite)

1011 N Jefferson Ave , Mt Pleasant, TX, 75455

Baylor Scott & White Advanced Heart Care - Paris

Baylor Scott & White Advanced Heart Care - Paris

875 S Collegiate Dr , Paris, TX, 75462

Baylor Scott & White Advanced Heart Care - Plano

Baylor Scott & White Advanced Heart Care - Plano

4716 Dexter Dr Ste 100, Plano, TX, 75093

Baylor Scott & White Advanced Heart Care - Sherman Sycamore (Satellite)

Baylor Scott & White Advanced Heart Care - Sherman Sycamore (Satellite)

203 E Sycamore St , Sherman, TX, 75090

Baylor Scott & White Advanced Heart Care - Sulphur Springs

Baylor Scott & White Advanced Heart Care - Sulphur Springs

601 Airport Rd Ste 110, Sulphur Springs, TX, 75482

Baylor Scott & White Advanced Heart Care – Sherman Highland (Satellite)

Baylor Scott & White Advanced Heart Care – Sherman Highland (Satellite)

300 N Highland Ave , Sherman, TX, 75092