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Growth Hormone (GH)
Test CodeGH
Alias/See Also
LAB525
CPT Codes
<p>83003</p>
Preferred Specimen
Patient Preparation: Random Growth Hormone collection should be performed on fasting patients who have rested for at least 30 minutes before collection.
Specimen Type: Serum
Collection Container/Type
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL
Patient Preparation
Random Growth Hormone collection should be performed on fasting patients who have rested for at least 30 minutes before collection.
Minimum Volume
0.5 mL
Instructions
Note: Administration of STRENSIQ may interfere in certain assays and may falsely elevate values. For patients receiving STRENSIQ, consideration should be given to using alternate methods.
Transport Container
Plastic screw-cap vial
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 7 days
Refrigerated: 14 days
Frozen: 28 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Plasma
Methodology
Immunoassay (IA)
Setup Schedule
Set up: Mon-Sat; Report available: 1-2 days
Report Available
1 day
Reference Range
| Adult | ≤7.1 ng/mL |
| Children (<20 years) | ≤10.1 ng/mL |
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.
Performing Laboratory
Quest Diagnostics Nichols Institute 14225 Newbrook Drive Chantilly, VA 20153
Last Updated: October 15, 2019