IGF - I Somatomedin - C Test
Short Name: IGF-I Somatomedin-C Test
Also known as: IGF-1 Test, Somatomedin-C Test, Insulin-like Growth Factor 1 Test
IGF - I Somatomedin - C Test test available at DNA Labs India for ₹5,500. Uses Chemiluminescent Immunoassay on 2 mL (1 mL min.) serum from 1 SST samples. Results in Reports available daily via online portal, email, or WhatsApp.. 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 children and adults, monitor treatment for growth hormone deficiency, and aid in the diagnosis and follow-up of acromegaly and gigantism.
- Test Code
- 851
- Price
- ₹5,500
- Sample Type
- 2 mL (1 mL min.) serum from 1 SST
- Result Time
- Reports available daily via online portal, email, or WhatsApp.
- Fasting Required
- No
- Method
- Chemiluminescent Immunoassay
Sample Collection
No special preparation required. Inform your doctor about any medications or supplements you are taking.
Method: Venipuncture
Laboratory Analysis
A healthcare professional will draw a small blood sample from a vein in your arm using a sterile needle. The process is quick and minimally invasive.
Report Delivery
Apply pressure to the puncture site to prevent bruising. Resume normal activities unless advised otherwise.
Timeline: Reports available daily via online portal, email, or WhatsApp.
Patient Instructions
About This Test
Who Should Get This Test
To diagnose growth hormone deficiency in children and adults, monitor treatment for growth hormone deficiency, and aid in the diagnosis and follow-up of acromegaly and gigantism.
How to Prepare
- Collect 2 mL (minimum 1 mL) of blood in an SST tube
- Separate serum within 1 hour of collection
- FREEZE the serum immediately after separation
- Ship frozen samples to the lab; DO NOT THAW during transit
Doctor's Notes
Reviewed by Dr Ramarao Paidisetty — MBBS, MD (Biochemistry) · Reg. No. 21504
"This test is essential for diagnosing growth hormone deficiency and monitoring treatment efficacy. It helps in evaluating growth disorders and adult GH deficiency."
Last medically reviewed: September 7, 2026
Test Parameters & Specifications
Sample Stability
- Hemolyzed or lipemic samples
- Samples not separated or frozen within 1 hour
- Thawed samples during shipping
- Insufficient sample volume
Understanding Your Results
May indicate growth hormone deficiency, growth hormone resistance, malnutrition, liver disease, or hypothyroidism.
May suggest acromegaly, gigantism, excessive growth hormone production, or misuse of recombinant human growth hormone.
Generally indicate adequate growth hormone function, but clinical correlation is essential.
Consult a doctor if you or your child experience symptoms of growth hormone deficiency, such as delayed growth, short stature, decreased muscle mass, increased body fat, fatigue, or decreased bone density, or if follow-up testing is required for diagnosed conditions.
Limitations
- ⚠Not a standalone diagnostic test; must be correlated with clinical symptoms and other tests
- ⚠Reference ranges vary significantly by age and sex, requiring careful interpretation
- ⚠May not detect all forms of growth hormone resistance or deficiency
- ⚠Results can be affected by nutritional status and chronic illnesses
Risks & Considerations
- ●Minor pain or bruising at the blood draw site
- ●Rare risk of infection or dizziness
- ●Slight risk of hematoma in individuals with bleeding disorders
Interfering Factors
- ●Hemolyzed or lipemic samples may affect accuracy
- ●Certain medications like steroids or growth hormone analogs can influence results
- ●Liver or kidney disease may alter IGF-1 levels
- ●Recent growth hormone injections can impact readings
Compare With Similar Tests
| Test | IGF - I Somatomedin - C Test | Growth Hormone Stimulation Test | Thyroid Function Test |
|---|---|---|---|
| Comparison | IGF - I Somatomedin - C Test | Directly measures growth hormone levels but is more invasive; IGF-1 test is a screening tool. | Evaluates thyroid hormones, which can affect growth and metabolism, unlike the IGF-1 test. |
Frequently Asked Questions
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