Specimen:

Plasma

Collection Medium:

Alternate
Collection Media:

Call laboratory for additional acceptable specimen collection 
containers.

Minimum:

6 mL whole blood in pink top tube

Rejection Criteria:

Grossly hemolyzed or lipemic specimens

Testing
Schedule:

24 hrs/day, 7 days a week, including holidays.

Analytic Time:

2 hours (upon receipt in laboratory)

Reference Range:

cord blood: <3.0 pg/mL
2-20 years: 9-52.0 pg/mL
adults:     10-65 pg/ml

Comments:

Please refer to the Intact PTH figures in the article Highly 
Sensitive Two-Site Immunoradiometric Assay of Parathyrin, and Its 
Clinical Utility in Evaluating Patients with Hypercalcemia found on 
page 1366 of Clinical Chemistry, Vol. 33, No. 8, 1987.

Methodology:

Immunometric Chemiluminescence

Sample
Processing:

Centrifuge at 3000 RPM for 10 minutes.
Aliquot plasma into labeled container and cap.

Sample
Storage:

Refrigerate.

Transport
Instructions:

Place requisition into outside pocket of bag.
Place specimen into zip-lock type bag, seal bag.
Place dry ice on top of specimen in styrofoam container.
Dry Ice up to 24 hours.

Instructions:

Spun plasma is stable for 3 days at 2-8 degrees C and 6 months at
-20 degrees C.

CPT Code:

83970