Growth Hormone Releasing Hormone (GHRH) Test
Short Name: GHRH Test
Also known as: GHRH Blood Test, Growth Hormone Releasing Hormone Assay, GHRH Serum Test
Growth Hormone Releasing Hormone (GHRH) Test test available at DNA Labs India for ₹35,000. Uses Extraction, Radioimmunoassay on 3 mL (1 mL min.) serum from 1 Red Top (No Additive) tube. Do not use SST gel barrier tubes. Separate serum into a sterile screw capped vial and freeze immediately. Ship frozen. DO NOT THAW. samples. Results in Sample must reach the laboratory by the 7th of the month; report is typically available after 2-3 weeks.. Free home collection in 300+ cities across India.
🩺 Medically Reviewed By
Dr Ramarao Paidisetty
Consultant Biochemist · Reg: 21504
Last reviewed: September 7, 2026
Overview
This test measures the level of growth hormone releasing hormone (GHRH) in the blood. It aids in evaluating disorders of the pituitary gland, particularly when growth hormone deficiency or excess is suspected. It may be used to identify rare GHRH hypersecretion by peripheral or endocrine tumors in patients with acromegaly.
- Test Code
- 3469
- Price
- ₹35,000
- Sample Type
- 3 mL (1 mL min.) serum from 1 Red Top (No Additive) tube. Do not use SST gel barrier tubes. Separate serum into a sterile screw capped vial and freeze immediately. Ship frozen. DO NOT THAW.
- Result Time
- Sample must reach the laboratory by the 7th of the month; report is typically available after 2-3 weeks.
- Fasting Required
- Yes (8 hours)
- Method
- Extraction, Radioimmunoassay
Sample Collection
Fast for at least 8 hours and avoid all medications that may influence pituitary secretion unless instructed otherwise. Duly filled Test Send Out Consent Form (Form 35) is mandatory.
Method: Venipuncture
Laboratory Analysis
A healthcare professional will collect 3 mL (minimum 1 mL) of blood from a vein into a red top no-additive tube. SST gel barrier tubes must not be used.
Report Delivery
The serum must be separated into a sterile screw capped vial and frozen immediately. The sample should be shipped frozen and must not be thawed.
Timeline: Sample must reach the laboratory by the 7th of the month; report is typically available after 2-3 weeks.
Patient Instructions
About This Test
Who Should Get This Test
This test measures the level of growth hormone releasing hormone (GHRH) in the blood. It aids in evaluating disorders of the pituitary gland, particularly when growth hormone deficiency or excess is suspected. It may be used to identify rare GHRH hypersecretion by peripheral or endocrine tumors in patients with acromegaly.
How to Prepare
- Schedule the test after an overnight fast of at least 8 hours
- Avoid medications that may influence pituitary secretion as advised by your doctor
- A single venipuncture is used to collect 3 mL of blood
- Do not use SST gel barrier tubes; use a red top no-additive tube
- Separate serum into a sterile screw capped vial and freeze immediately
- Fill and send the mandatory Test Send Out Consent Form (Form 35)
Doctor's Notes
Reviewed by Dr Ramarao Paidisetty — MBBS, MD (Biochemistry) · Reg. No. 21504
"GHRH testing is a specialized second-line investigation. In suspected acromegaly, IGF-1 and growth hormone suppression tests are usually first line, but ectopic GHRH-producing tumors are rare and should be considered when growth hormone excess is not explained by pituitary imaging. This test should be done after a complete endocrine evaluation and medication washout as advised."
Last medically reviewed: September 7, 2026
Test Parameters & Specifications
Sample Stability
- SST gel barrier tube used
- Thawed sample
- Insufficient serum volume (<1 mL)
- Missing Test Send Out Consent Form (Form 35)
Understanding Your Results
Consult a doctor if you or your child have slow growth, delayed puberty, short stature, decreased muscle mass, increased body fat, low bone density, fatigue, memory problems, or symptoms of acromegaly such as enlarged hands and feet, coarse facial features, or joint pain.
Limitations
- ⚠GHRH hypersecretion by peripheral tumors is rare; most acromegaly is due to pituitary growth hormone excess
- ⚠A single GHRH level may not fully assess growth hormone dynamics
- ⚠Specialized sample handling is required for reliable results
Risks & Considerations
- ●Mild pain or bruising at the venipuncture site
- ●Lightheadedness
- ●Bleeding at the puncture site
- ●Infection at the puncture site is rare
Interfering Factors
- ●Medications that influence pituitary secretion
- ●Use of SST gel barrier tubes
- ●Improper sample storage or thawing
- ●Recent hormonal therapy
Frequently Asked Questions
What is the GHRH test?
Why is the GHRH test done?
What is the cost of the GHRH test at DNA Labs India?
Is fasting required for the GHRH test?
What sample is required for the GHRH test?
How is the GHRH sample processed?
What is the turnaround time for the GHRH test?
Is home sample collection available for the GHRH test?
What are the symptoms of growth hormone deficiency?
What are the symptoms of growth hormone excess?
What medications should be avoided before the GHRH test?
How will I receive my GHRH test report?
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