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Calcium in Sternum Bone Tissue (Mass Concentration)

Published: August 9, 2026Updated: August 16, 2026

This test measures the amount of calcium present in a sample of bone tissue taken from your sternum (breastbone). Calcium is an essential mineral that plays a key role in bone health and other bodily functions.

Quick summary

["This test helps assess bone mineral density and identify potential calcium deficiencies or imbalances in bone tissue."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
36071-9
Short code
CT Sternum
Synonyms
CT Sternum
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
ct
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

Why This Test Might Be Ordered

Your healthcare provider may recommend this test if you have symptoms or conditions that could affect bone calcium levels, such as osteoporosis, bone fractures, or metabolic bone diseases. It may also be part of a broader evaluation for conditions like hyperparathyroidism or other bone-related disorders.

What to Expect Before the Test

No special preparation is typically required for this test. You may be asked to fast or avoid certain medications for a few days beforehand, depending on your specific situation. Your provider will guide you on any preparations needed.

During the Test Process

The test involves a small sample of bone tissue being collected from your sternum, usually through a procedure called a bone biopsy. This is done under local anesthesia to minimize discomfort. The sample is then analyzed in a laboratory to measure calcium concentration.

What the Results Mean

Results are compared to standard reference ranges for calcium in bone tissue. Lower than expected levels may indicate conditions like hypocalcemia in bone or metabolic bone disease, while higher levels could suggest issues like hypercalcemia or certain bone disorders.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Abnormal calcium levels in bone tissue can indicate underlying health issues affecting bone metabolism, such as osteoporosis, metabolic bone diseases, or conditions that alter calcium absorption and excretion. It can also help diagnose or monitor conditions like Paget’s disease or other skeletal disorders.

Short name

Bone Calcium Level

Frequently asked questions

What causes bone calcium levels to be tested?
Bone calcium tests are often ordered to diagnose or monitor conditions affecting bone health, such as osteoporosis, fractures, or metabolic bone diseases. They may also be used to evaluate symptoms like bone pain, fractures, or abnormal lab results related to calcium metabolism.
How is the bone sample collected for this test?
A small piece of bone tissue is taken from your sternum under local anesthesia. This procedure is called a bone biopsy and is typically done in a clinic or hospital setting with the help of imaging guidance to ensure accuracy.
Can this test be done without a biopsy?
This specific test requires a bone biopsy because it directly measures calcium in bone tissue. However, some related tests (like blood calcium levels) can be done without biopsy and may be used as part of a broader evaluation.
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy