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Growth Hormone (GH)
Test Code521
CPT Codes
83003
Preferred Specimen
1 mL serum
Minimum Volume
0.5 mL
Instructions
Random Growth Hormone collection should be performed on fasting patients who have rested for at least 30 minutes before collection.
Transport Container
Plastic screw-cap vial
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 7 days
Refrigerated: 14 days
Frozen: 28 days
Refrigerated: 14 days
Frozen: 28 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Plasma
Methodology
Immunoassay (IA)
Setup Schedule
Mon-Fri
Report Available
1 to 3 Day(s)
Clinical Significance
Measurement of GH is primarily of interest in the diagnosis and treatment of various forms of inappropriate growth hormone secretion. Growth hormone measurements in children are used in the evaluation of short stature and help differentiate low GH production from other sources of growth failure. Stimulation and suppression tests are often more meaningful than random measurements.