Growth Hormone Lvl (GH)

Department: Special Chemistry
Test Synonym(s): LAB525, GH, Growth Hormone Level
CPT Codes: 83003
Methodology: Siemens Immulite 2000 Chemiluminescent Immunoassay
Reference Range: Expected Baseline: Adult Females less than/= 8 ng/mL, Adult Males less than/= 3 ng/mL; Expected Post Stimulation: Adults > 5 ng/mL, Children >7 ng/mL
Tube Type: Red top tube (no gel)
Specimen: Serum
Alternate Specimen: Dark green top (Sodium Heparin), Light green top PST (Lithium Heparin with gel) or lavender top (EDTA)
Pediatric Requirements: 1 red microtainer
Volume: 5 mL
Minimum Volume: 1 red top
Temperature: Must be centrifuged in room temperature centrifuge, separated, and plasma frozen.
Stability: Refrigerated serum: 1 week
Days Performed: Monday - Friday
Times Performed: 8:00 a.m. - 2:00 p.m.
TAT: 1 day
Significance: Patient results determined by assays using different manufacturers for methods may not be comparable.

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