Parathyroid Hormone Intact, with Calcium, Serum

Test Code

PTHI. - NOCO

CPT Codes
PTH 83970; Ca 82310

Preferred Specimen

2.0 mL from SST

Minimum Volume

1.0 mL

Other Acceptable Specimens

2.0 mL from Red Top - Separated

Transport Temperature

Serum - Frozen

Specimen Stability

Specimen Type	Temperature	Time
Serum SST	Frozen	30 day – Preferred for specimens requiring courier transport.
Serum SST or Red Top – Separated*	Ambient	4 hours
Serum SST or Red Top – Separated*	Refrigerate	8 hours

*Centrifuge and aliquot into a plastic vial.

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

Gross hemolysis

Methodology

Setup Schedule

Monday through Sunday; Continuously

Report Available

Same day

Reference Range

Refer to the Chemistry Reference Range and Critical Results documents in the Resources file on the facility test directory page.

Performing Laboratory
North Colorado Medical Center Laboratory
Banner Fort Collins Medical Center

Last Updated: August 13, 2026

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.