Description
Blood, NA, Fasting or Non Fasting: As suggested by doctor
Sample Required:
The IGF-1 (Somatomedin C) test typically requires a blood sample.A vein in your arm will be accessed by a healthcare practitioner.
Test Time:
The turnaround time for the IGF-1 test can vary between laboratories, but results are usually available within a few days.
Test Normal Range:
The typical range for IGF-1 levels varies according to age and gender. It is essential to interpret the results in the context of your age and gender, as these levels change throughout life.
What is the Test?
IGF-1 (Somatomedin C) testing determines the level of insulin-like growth factor-1 in your blood. IGF-1 is a growth hormone that stimulates development. It is produced by the liver in response to the stimulation of growth hormone (GH) and is involved in regulating the growth of bones and tissues.
Test Procedure:
A healthcare provider will draw a blood sample from a vein in your arm. A blood sample is sent to a laboratory for analysis. The blood sample is processed in the laboratory, and the concentration of IGF-1 is determined using specialist equipment and processes.
When to Take the Test:
When there is a clinical suspicion of a growth issue, such as growth hormone shortage or excess, the IGF-1 test is often administered. It may also be used to monitor individuals with certain medical conditions, including acromegaly (excess GH production) or those receiving GH replacement therapy.
Who Should Take This Test:
This test is primarily ordered for individuals with signs or symptoms of growth disorders, individuals undergoing treatment for growth disorders, or those being evaluated for acromegaly or other conditions affecting GH and IGF-1 levels.
Precautions for Exceptional Cases (Pregnancy, etc.):
Pregnancy can affect IGF-1 levels, so healthcare providers consider individual circumstances when interpreting results during pregnancy.
FAQs (Frequently Asked Questions):
Q1: What can cause low IGF-1 levels?
A: Low IGF-1 levels may result from growth hormone deficiency, malnutrition, chronic illnesses, and certain genetic conditions.
Q2: What can cause high IGF-1 levels?
A: Elevated IGF-1 levels may be associated with acromegaly (excess GH production), certain tumors, and medical conditions affecting GH regulation.
Q3: Are there age-specific reference ranges for IGF-1?
A: Yes, reference ranges for IGF-1 vary by age and sex because IGF-1 levels naturally decrease with age.
Q4: Can IGF-1 testing help diagnose acromegaly?
A: Yes, IGF-1 testing, along with other hormone tests and imaging studies, can aid in the diagnosis of acromegaly.
Q5: Is IGF-1 testing routinely done for children?
A: IGF-1 testing may be ordered for children with growth concerns or those suspected of having growth hormone deficiency. It helps evaluate growth-related issues in pediatric patients.
