PARATHYROID HORMONE (PTH)

Message

If intraoperative PTH, please notify Chemistry Laboratory (74232) in advance.

Test Code

LAB108

CPT Codes
83970

Preferred Specimen

One 6 mL lavender top tube
Pediatric: two lavender top microtainers

Other Acceptable Specimens

Dark green top

Instructions

We are currenlty only accepting lavender top tubes. Sample must be centrifuged within two hours of collection if not refrigerated.

Transport Temperature

Refrigerated

Specimen Stability

Ambient: plasma or whole blood: Not specified
Refrigerated: plasma or whole blood: 2 days. If more than two days before testing, plasma must be removed from red cells, aliquoted and frozen.
Frozen: Plasma or serum: 6 months

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Plasma clotted

Methodology
Chemiluminescent Immunoassay

Setup Schedule

Sunday-Saturday

Reference Range

Age	Reference Range (pg/mL)
< 1 year	6.5-88.5
1-8 years	16.0-63.0
9-16 years	22.0-88.0
17-18 years	16.0-60.0
≥ 19 years	8.5-77.0

Performing Laboratory
West Virginia University Hospital, Inc.
Berkeley Medical Center
Jefferson Medical Center
Camden Clark Medical Center
United Hospital Center

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.