Test Overview
Test Methodology

Direct Radioimmunoassay (RIA)

Reference Range *

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

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
FGNRH
MiChart Code
FGNRH
Laboratory
Sendout
Reference Laboratory
Mayo FGNRH (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

Yellow Top Tube
Normal Volume
3 mL serum
Minimum Volume
1 mL serum
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
NY State Approved
No