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Osteoid/Type I Collagen Peptide (Serum)

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

This test measures a protein fragment produced by bone-forming cells, reflecting bone formation activity in your body.

Quick summary

["Helps assess bone health and detect conditions affecting bone growth or remodeling."]

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

Key facts at a glance

LOINC
61292-9
Short code
Oyster IgE/IgE total %
Synonyms
Oyster IgE/IgE total %
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
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

What This Test Measures

Osteocalcin is a marker released by osteoblasts (bone-forming cells) during the synthesis of Type I collagen, a key structural protein in bones. Elevated levels may indicate increased bone turnover, while lower levels could suggest reduced bone formation.

Why It’s Ordered

Doctors may order this test to monitor bone metabolism in conditions like osteoporosis, Paget’s disease, or metabolic bone diseases. It’s also used in research or clinical trials studying bone healing or growth disorders.

Common Conditions Monitored

Changes in osteocalcin can signal whether bone formation is active or suppressed. For example, it may help track response to treatments for bone-related illnesses or evaluate bone density over time.

Sample Collection Notes

A blood sample is drawn from a vein, typically in the arm. The serum (liquid part of blood after clotting) is used for analysis. Avoid strenuous activity or caffeine 24 hours before testing to ensure accurate results.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Osteocalcin (Serum)

Frequently asked questions

Why might my doctor ask for this test?
Your doctor may recommend this test if you have symptoms like bone pain, fractures, or if you’re being treated for a bone disorder. It helps assess whether your bones are forming new tissue at a healthy rate or if there’s an imbalance in bone breakdown and repair.
What do my results mean?
Results alone don’t diagnose a condition—they’re part of a bigger picture. Your doctor will compare your levels to your medical history, symptoms, and other tests. For example, persistently low levels might suggest conditions like hypoparathyroidism or vitamin D deficiency.
Can I influence my osteocalcin levels?
Yes! Lifestyle factors like calcium-rich diet, weight-bearing exercise, and avoiding smoking or excessive alcohol can support bone health. Some medications (e.g., bisphosphonates) may also affect bone turnover and could influence test results.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

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