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Test ID FGNRH Gonadotropin Releasing Hormone (Gn-RH, Luteinizing Hormone-Releasing Hormone LH-RH)

Method Name

Direct Radioimmunoassay (RIA)

Reporting Name

Gonadotropin Releasing Hormone

Specimen Type


Specimen Required

Patient preparation:

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



Specimen Type: Serum

Container/Tube: Red top or SST

Specimen Volume: 3 mL

Collection Instructions: Draw blood in a plain, red-top tube(s), serum-gel tube(s) is acceptable. Separate immediately and send 3 mL of serum frozen in a plastic vial.

Specimen Minimum Volume

1 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Frozen (preferred) 90 days
  Refrigerated  7 days

Reference Values

Adult Reference Range(s):

Males:  4.0 - 8.0 pg/mL

Females:  2.0 - 10.0 pg/mL


No pediatric reference ranges available for this test.

Day(s) and Time(s) Performed

Monday through Friday

Performing Laboratory

Inter Science Institute

CPT Code Information


LOINC Code Information

Test ID Test Order Name Order LOINC Value
FGNRH Gonadotropin Releasing Hormone 13660-6


Result ID Test Result Name Result LOINC Value
Z0929 Gonadotropin Releasing Hormone 13660-6

Test Classification

This test was developed and it's performance characteristics determined by Inter Science Institute. It has not been cleared or approved by the US Food and Drug Administration. The FDA has determined that such clearance or approval is not necessary.

NY State Approved