Good to knowOne result rarely tells the whole story. Your provider looks at your results together with your symptoms, exam, and other tests.
What the test is
Normal ranges depend heavily on age.
Why it's done
- Signs of acromegaly, like growing hands, feet, or jaw
- Short stature or slow growth in children
- Pituitary problems
Getting ready and what happens
- You may be asked to fast.
How the test is done
- A health worker cleans the skin, puts a band around your arm, and draws blood from a vein with a small needle. It takes a few minutes.
What the results mean
High for age
Suggests too much growth hormone; a glucose suppression test may follow.
Low for age
Can point to growth hormone deficiency, malnutrition, or liver disease.
Questions to ask your provider
- What do my results mean for me?
- Do I need to repeat this test or have other tests?
Risks
A blood draw is very safe. You may have slight pain or a small bruise where the needle went in.
Related conditions
Sources
Last updated 2026-11-13.