Osteocalcin - Serum Bone gamma-carboxyglutamic acid (Gla) protein (BGP)
Also Known As
Test Parameters Included
- Serum Osteocalcin Concentration (ng/mL) - quantitative bone formation marker
- Pathologist Clinical Biochemistry Remark - mapped against age/sex-specific reference intervals for bone turnover assessment
Department
Methodology
Sample Required
Preparation
Schedule Report
24 Hours
Emergency Report
Yes
Frequently Asked Questions
Is fasting required for osteocalcin test?
No, fasting is not strictly required, but consistent timing (morning) is recommended due to diurnal variation.
What do high osteocalcin levels indicate?
Elevated levels suggest increased bone turnover, seen in conditions like hyperthyroidism, Paget's disease, postmenopausal osteoporosis, or renal osteodystrophy.
What do low osteocalcin levels indicate?
Low levels may indicate decreased bone formation, as in osteomalacia, hypoparathyroidism, or during effective anti-resorptive therapy.
How is the sample collected?
A blood sample is drawn from a vein in the arm, collected in a serum separator tube, and sent for chemiluminescence assay.
How long does it take to get results?
Reports are typically available within 24-48 hours.
Test Description
Test Code
O08
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