Growth Hormone Suppression
Test Mnemonic
GHSUP
CPT Codes
- 80430 - QTY (1)
Includes
- Growth Hormone Basal
- Growth Hormone 30 min
- Growth Hormone 60 min
- Growth Hormone 120 min
- Glucose 30 min
- Glucose 60 min
- Glucose 120 min
Performing Laboratory
Cleveland Clinic Laboratories
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 2 mL | Plasma | Potassium oxalate/sodium fluoride (Gray) | Refrigerated | ||
| 1 mL | Serum | SST (Gold) | Refrigerated | Draw baseline specimen, then 30, 60 and 120 minutes post administration of suppressant. |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.5 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | SST (Gold) and Potassium oxalate/sodium fluoride (Gray): 24 hours Lithium heparin PST (Lt. Green): 8 hours |
| Refrigerated | SST (Gold): 7 days Potassium oxalate/sodium fluoride (Gray): 24 hours Lithium heparin PST (Lt. Green): 3 days |
| Frozen | SST (Gold): 14 days Potassium oxalate/sodium fluoride (Gray) and Lithium heparin PST (Lt. Green): Unacceptable |
Days Performed
Mon - Fri
Turnaround Time
1 - 3 days
Methodology
| Name | Description |
|---|---|
| Immunoenzymatic Assay | |
| Enzymatic |
Reference Range
Special Info
Patient Preparation: 10 hour fast prior to collection.
Clinical Info
To confirm diagnosis of active acromegaly.