Osteocalcin
Test Mnemonic
OSTEOC
CPT Codes
- 83937 - QTY (1)
LOINC ®
2697-1
Aliases
- Bone G1A Protein
- Osteocalcin by Electrochemiluminescent Immunoassay
- Osteocalcin, N-mid
Performing Laboratory
Cleveland Clinic Laboratories
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.5 mL | Serum | SST (Gold) | Frozen | Allow blood clot thoroughly at room temperature before centrifugation. Centrifuge and separate serum from cells ASAP or within 2 hours of collection. |
Alternate Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.5 mL | Serum | No additive (Red) | Frozen | Allow blood clot thoroughly at room temperature before centrifugation. Centrifuge and separate serum from cells ASAP or within 2 hours of collection. |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.3 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Frozen | After separation from cells: 3 months |
| Refrigerated | After separation from cells: 72 hours |
| Ambient | After separation from cells: 8 hours |
Days Performed
Mon, Wed, Fri
Turnaround Time
2 - 3 days
Methodology
| Name | Description |
|---|---|
| Electro Chemiluminescence Immunoassay (ECLIA) |
Reference Range
| Osteocalcin | |||||
|---|---|---|---|---|---|
| Sex | Age From | Age To | Type | Range | Range Unit |
| 18 Years | 99 Years | Normal | 8.6 - 37.6 | ng/mL |
Special Info
At least eight hours before this blood test, do not take multivitamins or dietary supplements containing biotin or vitamin B7 that are commonly found in hair, skin and nail supplements and multivitamins.
Clinical Info
In patients with renal failure the osteocalcin result can be elevated, both directly, due to impaired clearance, and indirectly, due to renal osteodystrophy.