Growth Hormone Stimulation Test
Short Name: GH Stimulation Test
Also known as: GH Stimulation Test, Growth Hormone Challenge Test
Growth Hormone Stimulation Test test available at DNA Labs India for ₹4,500. Uses Chemiluminescent Immunoassay on Serum from SST (Serum Separator Tube) samples. Results in Reports are typically available within 24-48 hours after sample collection.. Free home collection in 300+ cities across India.
🩺 Medically Reviewed By
Dr Ramarao Paidisetty
Consultant Biochemist · Reg: 21504
Last reviewed: September 7, 2026
Overview
To diagnose growth hormone deficiency in cases of growth retardation, short stature, and dwarfism, using provocative agents to stimulate hormone release and measure response.
- Test Code
- 678
- Price
- ₹4,500
- Sample Type
- Serum from SST (Serum Separator Tube)
- Result Time
- Reports are typically available within 24-48 hours after sample collection.
- Fasting Required
- Yes (8 hours)
- Method
- Chemiluminescent Immunoassay
Sample Collection
Overnight fasting is mandatory. Patient should be at rest for 30 minutes prior to basal sample collection. Avoid strenuous activity the day before.
Method: Venipuncture
Laboratory Analysis
Administer stimulating agent (e.g., Clonidine 300 µg orally). Draw baseline specimen, then additional specimens at 30, 60, and 90 minutes post-stimulation. For insulin-induced test, use 0.10-0.15 U/kg IV.
Report Delivery
Ship samples refrigerated or frozen. All containers must be clearly marked with time drawn and submitted with one test request form.
Timeline: Reports are typically available within 24-48 hours after sample collection.
Patient Instructions
About This Test
Who Should Get This Test
To diagnose growth hormone deficiency in cases of growth retardation, short stature, and dwarfism, using provocative agents to stimulate hormone release and measure response.
How to Prepare
- Fast overnight for at least 8 hours before the test.
- Arrive early and rest for 30 minutes before the first blood draw.
- Inform the technician about any medications or health conditions.
- Multiple blood samples will be taken at timed intervals.
- Stay hydrated unless instructed otherwise.
Doctor's Notes
Reviewed by Dr Ramarao Paidisetty — MBBS, MD (Biochemistry) · Reg. No. 21504
"The Growth Hormone Stimulation Test is essential for diagnosing deficiency, which can impact growth in children and metabolic health in adults. Accurate diagnosis guides effective treatment."
Last medically reviewed: September 7, 2026
Test Parameters & Specifications
Sample Stability
- Sample not labeled with time drawn
- Insufficient sample volume
- Sample hemolyzed or contaminated
- Test request form missing
Understanding Your Results
GH > 10 ng/mL post-stimulation
Normal growth hormone response
Action: No deficiency indicated
GH < 10 ng/mL post-stimulation
Possible growth hormone deficiency
Action: Repeat test or further evaluation recommended
GH < 5 ng/mL post-stimulation
Likely growth hormone deficiency
Action: Consult endocrinologist for treatment options
Consult an endocrinologist if test results indicate growth hormone deficiency, or if symptoms like short stature, delayed puberty, or fatigue persist despite normal results.
Limitations
- ⚠Results may vary based on age and gender
- ⚠Multiple stimulation tests may be required for confirmation
- ⚠False positives or negatives possible due to individual variability
- ⚠Not suitable for patients with severe hypoglycemia risk
Risks & Considerations
- ●Mild pain or bruising at the blood draw site
- ●Dizziness or nausea from stimulation agents
- ●Rare allergic reaction to administered drugs
- ●Hypoglycemia with insulin-induced test (if used)
Interfering Factors
- ●Medications such as corticosteroids or estrogen
- ●Stress or lack of sleep
- ●Recent exercise or food intake
- ●Obesity or liver disease
Compare With Similar Tests
| Test | Growth Hormone Stimulation Test | |||
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| Comparison | Growth Hormone Stimulation Test |
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