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Test Code
OCALC
Test Name
Osteocalcin
CPT Codes
83937
Expected Turnaround Time
2 - 4 days
Clinical Utility

This test is used to evaluate bone disease. Increased levels of osteocalcin are found in bone diseases characterized by increased bone turnover. Osteocalcin has been found to be elevated in Paget disease of the bone, cancer accompanied by bone metastases, primary hyperparathyroidism and renal osteodystrophy. Osteocalcin levels may serve as useful index in evaluating the therapeutic management of the patient.
Specimen and Container Info

Specimen Type: Serum

Collection Container: Gold Top, Serum Separator

Alternate Collection Container: Red Top, Plain

Desired Specimen Volume: 0.8 mL
Collection Instructions
  1. Collect a gold top, serum separator tube via venipuncture
Processing and Submission Instructions
  1. Separate serum from cells.
  2. Transfer 0.8 mL of serum to a LabCorp PP transpak frozen purple tube.
  3.  Freeze immediately and maintain frozen until tested. 
  4. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested.
Transport Instructions

Transport to the laboratory frozen. 
Stability Requirements

Frozen

-20°C = 30 days

-70°C = 90 days
Methodology
ELISA
Reference Intervals

 See patient report.
Alternate Names
  • Bone GLA Protein
Reference Lab
Labcorp Of America Holdings
Testing Schedule
Monday-Friday
The American Medical Association (AMA) Current Procedural Terminology (CPT) codes published by HNL Lab Medicine are guidelines and are intended for informational purposes only. CPT coding is the exclusive responsibility of the billing entity. View the Terms.
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