Is Bone Density Test Preparation Necessary? We’ll Tell You What’s Needed

If you’re planning to schedule a bone density scan, you want to know what to expect. You may be wondering, what does bone density test preparation include? How long does the test take and what does it measure? What do my test results mean and is there a way to improve my bone density?

We’ll answer all these questions to help put your mind at ease. The good news is, this essential test is a quick and painless noninvasive procedure.

Need to schedule a bone density test? With imaging services at three locations, we’ve made it simple and convenient. Walk-ins are welcome, and for exams that require appointments, scheduling is easy. Simply call 843-234-5474 or visit CMC Imaging Services to learn more.

What is a Bone Density Test and What Does It Measure?

A bone density test, also called a DXA scan, uses low-dose X-rays to measure the amount of calcium and other minerals in your bones. A higher bone mineral content indicates denser, stronger bones that are less likely to break.

A bone density test helps us detect osteoporosis, assess bone strength and evaluate your risk for fractures. The most common bones examined during the test are the hip, the lower lumbar vertebrae of the spine, and the forearm.

How Long Does a Bone Density Test Take?

A bone density scan is a painless outpatient procedure that typically takes between 10 and 30 minutes, depending on how many areas of your body need to be scanned and the specific equipment used.

Your bone density test will be performed with you lying on a padded table while a scanning arm passes over your body to gather images of your bones. You’ll need to stay very still to ensure clear, accurate images.

Bone Density Test Preparation

There is very little preparation needed for a bone density test. 

Here’s how to get ready:

• Wear loose, comfortable clothing that doesn’t have buttons, belts or metal zippers.
• Remove all metal objects from your pockets, as well as any jewelry, including watches and earrings, prior to the test.
• Let your doctor know if you are pregnant, breastfeeding, or have any medical conditions.
• Don’t take calcium supplements for at least 24 hours before the test.
• Tell your doctor if you are taking other medications that can affect bone density, such as corticosteroids.
• Tell your doctor if you’ve recently had a procedure that uses contrast dye, as this can interfere with your results.
• You can eat and drink normally before the test.

How Do You Read Bone Density Test Results?

A bone density report reveals what’s known as a “T-score” and a “Z-score.” Your doctor will interpret the results of your bone density test based on these two numbers, which indicate how dense your bones are.

Essentially, these scores demonstrate bone density by comparing your results to a reference population. In the case of a T-score, your results are compared to those of a healthy young adult of the same sex at peak bone mass; in the case of a Z-score, your results are compared to those of the same age, sex, and ethnicity. 

 Lower, more negative scores typically indicate lower bone density and a higher risk of fractures.

We’ll discuss T-score and Z-score measurements in the next section.

T-Score and Z-Score: What Do They Mean?

Your T-score is the number of units your bone density measurement is above or below the average compared to a healthy young adult of the same sex.

• A T-score of -1 and above is considered normal bone density.
• A T-score of between -1 and -2.5 indicates lower than normal bone density, also known as osteopenia or low bone mass, which increases the risk of osteoporosis.
• A T-score of -2.5 and below signifies osteoporosis. 

Your Z-score is the number of units your bone density measurement is above or below the average of someone of your age, sex, weight, and ethnicity.

A normal, healthy Z-score is close to 0 and indicates your bone density is average for your age and sex. If your Z-score is low, typically below -2.0, your bone mass is considered lower than expected for your age group and you may need further tests to find the cause.

T-scores are typically used for postmenopausal women and adults 50 or older, while Z-scores are used for premenopausal women, men under 50 and children and young adults.

Your bone density test results will be interpreted in the context of your current health and lifestyle, your medical history, medications you’re taking and other risk factors to determine the best course of action if you have lower than normal bone density.

Treatment for low bone density or osteoporosis usually doesn’t involve orthopedic surgery, unless the condition leads to severe fractures. In that case, surgery may be recommended to repair osteoporosis-related bone damage.

How Can You Increase Your Bone Density?

If your bone density scores aren’t ideal, we can help you develop a plan to strengthen your bones and reduce your risk of osteoporosis and fractures. 

Effective strategies to improve bone density may include:

• Regular physical activity which strengthens bones and helps prevent bone loss
• Eating a balanced diet that includes calcium-rich foods like dairy, leafy green vegetables, fortified foods and the right amount of protein, which plays an essential role in bone health and strength
• Practicing good lifestyle habits such as getting enough sleep and maintaining a healthy weight
• Avoiding alcohol and smoking, which can negatively impact bone density
• Taking prescription medications that help slow bone loss and prevent fractures
• Taking vitamin D or calcium supplements

Is It Time for Your Bone Density Test? CMC Imaging Services Makes It Simple and Convenient

Maintaining your bone health as you age is essential. A bone density test is quick and painless and helps us evaluate your fracture risk, detect osteoporosis and assess your overall bone health.

The results of your bone density test will guide us in creating a plan to maintain or improve your bone health and reduce your risk of fractures. Call us at 843-234-5474  to schedule an appointment or visit CMC Imaging Services to learn more.