Test Details

Mnemonic

GRH

Ordering Code

3805300

CPT-4 Code(s)

83727

Specimen Information

Patient Preparation

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

SST
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Specimen Preparation

Centrifuge, separate and send 3.0 mL serum frozen in a screw-capped plastic vial.
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Alternate Specimen

Serum: Plain red top
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Minimum Volume

1.0 mL
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Transport Temperature

Frozen
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Rejection Criteria

Grossly hemolyzed, lipemic or icteric specimens
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Stability

Room temperature: Unacceptable
Refrigerated: 7 days
Frozen: 90 days
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Methodology

Radioimmunoassay
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Reference Range

Adult Males: 4.0-8.0 pg/mL
Adult Females: 2.0-10.0 pg/mL
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Performing Laboratory

Mayo Clinic Laboratories
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New York DOH Approval Status

No
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