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Test Code OST Osteocalcin

Specimen Type

Blood

Container

Mint green top with gel separator

Preferred Volume

3.5 mL

Availability

Monday – Friday 7:00 a.m. – 6:00 p.m.

Turnaround Time

24 – 72 hrs

STAT Availability

Not Available

Test Usage

The determination of osteocalcin, an indication of human bone formation and osteoblastic activity, may be useful as an aid in the management of postmenopausal osteoporosis.

Test Methodology

electrochemiluminescent immunoassay (ECLIA)

CPT Code

83937

Test Includes

quantitative determination of N-MID osteocalcin in plasma

Reference Range

Males:
20- 50 years: 9 – 35 ng/mL
> 50 years: 10 – 33 ng/mL

Females:
20 – 50 years: 9 – 33 ng/mL
>50 years: 8 – 38 ng/mL

Critical Results

None

Test Limitations

Avoid hemolysis. Erythrocytes contain proteases which degrade osteocalcin.
In patients with renal failure the osteocalcin values can be elevated, both directly, due to impaired clearance and indirectly, due to renal osteodystrophy.

Minimum Volume

2 mL

Fee Code

43857