Test Overview
Test Methodology

Direct Radioimmunoassay (RIA)

Reference Range *

Adults-Males: 4.0-8.0 pg.mL; Females 2.0-10.0 pg/mL

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Limitations

Patient should not be on any Steroid, ACTH, Gonadotropin, or Estrogen medications, if possible, for at least 48 hours prior to collection.

Test Details
Days Set Up
Monday - Friday
Analytic Time

9 - 13 days

Soft Order Code
FGNDR
MiChart Code
FGNDR
Laboratory
Sendout
Reference Laboratory
Mayo FGNDR (Interscience Institute)
Section
Special Testing
Specimen Requirements
Collection

Collect specimen in Red top or SST tube. Spin and aliquot serum IMMEDIATELY into a screw capped plastic tube. Send to Specimen Processing frozen. EDTA lav top tube is acceptable

Alternate Specimen
EDTA lav top plasma
Normal Volume
3 mL serum (or plasma)
Minimum Volume
1 mL serum (or plasma)
Storage Temperature
Frozen preferred, refrigerated acceptable
Additional Information

Test sent to Mayo Clinic Laboratories; performed by Interscience Institute

Billing
CPT Code
83727
Fee Code
AA662