PARATHYROID HORMONE, INTACT

Specimen Required
Draw blood in a lavender EDTA. Centrifuge, remove plasma from cells and send 1.5 mL plasma (1.0 mL minimum) frozen in a screw-capped plastic vial. Label as PLASMA.

Alternate Specimen
Serum: 2.0 mL serum (1.0 mL minimum) frozen.

Rejection Criteria
Grossly hemolyzed specimens, heparinized plasma

Methodology
Immunoassay

Stability
Plasma: Room temperature: 48 hours; Refrigerated: 72 hours; Frozen: 6 months
Serum: Room temperature: Unacceptable; Refrigerated: Unacceptable; Frozen: 6 months

Reference Range
<1 year:   7-58 pg/mL  
1-7 years:   12-55 pg/mL  
8-18 years:   12-71 pg/mL  
> or = 19 years:   14-64 pg/mL  

Performed
Tuesday-Saturday

Turnaround Time3-5 days
Test CodePTH
CPT-4 Code (s)
83970
LOINC Codes
2731-8

Warde
Medical
Laboratory