FGNRH - Specimen: Gonadotropin Releasing Hormone (Gn-RH)

Test Catalog

Test Name

Test ID: FGNRH    
Gonadotropin Releasing Hormone (Gn-RH)

Specimen Type Describes the specimen type validated for testing


Specimen Required Defines the optimal specimen. This field describes the type of specimen required to perform the test and the preferred volume to complete testing. The volume allows automated processing, fastest throughput and, when indicated, repeat or reflex testing.

Submit only 1 of the following specimens:



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

Note:    1. Indicate serum on request form.

            2. Label specimen appropriately (serum).



Draw blood in a lavender-top (EDTA) tube(s). Separate immediately and send 3 mL of EDTA plasma frozen in a plastic vial.

Note:    1. Indicate plasma on request form.

            2. Label specimen appropriately (plasma).


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 Minimum Volume The amount of sample necessary to provide a clinically relevant result as determined by the Laboratory.

1 mL

Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected

Specimens other than

Serum, plasma

Anticoagulants other than





Warm reject; Cold reject





Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the laboratory. Alternate acceptable temperatures are also included.

Specimen TypeTemperatureTime
VariesFrozen (preferred)180 days
 Refrigerated 7 days