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HelpTest Code HGH Growth Hormone (HGH)
Useful For
Measurement of HGH is primarily of interest in the diagnosis and treatment of various forms of inappropriate growth hormone secretion such as dwarfism, unattained growth potential, gigantism and acromegaly.
Synonyms/Keywords
HGH, GH, Human Growth Hormone
Specimen Requirements
| Fasting Required | Specimen Type | Preferred Container/Tube | Acceptable Container/Tube | Specimen Volume | Specimen Minimum Volume (allows for 1 repeat) |
Pediatric Minimum Volume (no repeat) |
|---|---|---|---|---|---|---|
| Yes | Serum | Red Top Tube (RTT) | 1.0 mL | 0.4 mL | 0.3 mL |
Collection/Processing Instructions
Patient should be fasting and at complete rest 30 minutes before specimen is drawn.
Separate serum from cells within 2 hours of collection.
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum | Refrigerated | 8 hours |
| Frozen | 2 months |
Rejection Criteria
Grossly hemolyzed
Test Information
Performed by double-antibody chemiluminescent sandwich assay using DPC Immulite. Results correlate with classical Kallestad RIA and Nichols IRMA assays. Assay measures primary 22 kilodalton GH isoform but will also cross-react with 20 kilodalton GH isoform.
The drug asfotase alfa (STRENSIQ), a recombinant form of alkaline phosphatase, is expected to interfere with in vitro diagnostic assays utilizing an alkaline phosphatase detection system. Test samples from patients taking asfotase alfa with a non-alkaline phosphatase methodology.
Reference Range Information
| Performing Location | Reference Range |
|---|---|
| Marshfield | ≤ 5.0 ng/mL |
Marshfield Labs Performing Department
Marshfield Labs Immunodiagnostics
Performing Information
| Performing Location | Day(s) Test Performed | Analytical Time | Methodology/Instrumentation |
|---|---|---|---|
| Marshfield | Monday through Friday | 1 day | DPC Immulite |
CPT Codes
| CPT | Modifier (if needed) |
Quantity | Description | Comments |
|---|---|---|---|---|
| 83003 |
Outreach CPT Codes
| CPT | Modifier (if needed) |
Quantity | Description | Comments |
|---|---|---|---|---|
| 83003 |
Ordering Applications
| Ordering Application | Description |
|---|---|
| Cerner | Growth Hormone (HGH) |