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
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
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