Iron Studies
Blood tests that check the levels of iron in your body.
Iron Studies
Blood tests that check the levels of iron in your body.
Also known as
- Iron profile
- Ferritin
- TIBC
What it measures
- Different substances in the blood that reflect iron levels
Why a doctor may order it
A doctor may ask for it if you have symptoms of iron levels that are too low or too high, or as a routine check. Low iron may not cause symptoms until it is very low.
What it helps evaluate
It can help a doctor check whether iron levels are low or high. Some people are more likely to have low iron — for example people with heavy periods, people who are pregnant or breastfeeding, and frequent blood donors.
Preparation
If you have questions about how to prepare, ask your provider.
Fasting
Your provider may ask you to fast for 12 hours before the test, which is usually done in the morning.
Important considerations
- Iron levels can be too high as well as too low, so iron supplements are best started on a doctor's advice.
Discuss results with your doctor
Talk to a doctor about your symptoms and about what your results mean — a single result is not a diagnosis. See a doctor promptly for severe or worsening symptoms.

