Total Iron Binding Capacity (TIBC) Test
Total Iron Binding Capacity (TIBC) Test is a laboratory test you can order directly. The Total Iron Binding Capacity (TIBC) test measures how well your blood can carry iron. It is often ordered along with iron and ferritin tests to help evaluate anemia, iron deficiency, or iron overload.
- Sample type
- blood
- Category
- Anemia & Iron
- Turnaround
- 1-3 business days
- Price
- $29
- Referral
- Not required
The Total Iron Binding Capacity (TIBC) test measures how well your blood can carry iron. It is often ordered along with iron and ferritin tests to help evaluate anemia, iron deficiency, or iron overload.
What it measures
- TIBC — The total amount of iron that can be bound by proteins in your blood.
- Iron — The amount of iron currently in your blood.
- Transferrin Saturation — A calculation showing the percentage of iron-binding sites that are occupied by iron.
- Ferritin — A protein that stores iron; often included to assess iron stores.
Who it is for
A doctor may order a TIBC test if you have symptoms of anemia, such as fatigue or weakness, or if you have a condition that affects iron levels.
Preparation
Fasting is not usually required for a TIBC test. However, you may need to avoid iron supplements for 24 hours before the test; follow your doctor's instructions.
Results and what they mean
Results are reported as numbers for TIBC, iron, and transferrin saturation. Your doctor will interpret these values together with your medical history and other tests. This information is not medical advice; always discuss your results with a healthcare provider.
How to order this test
- Choose the test and place a confidential order online.
- Select a certified collection site and pick a time that suits you.
- Have your specimen collected — most draws take only a few minutes.
- Review results in a secure portal, typically within 1–3 days.
Preparation, hours, and pricing vary by site; confirm details directly with the lab before your visit.
Availability by state
Direct-access online ordering for the total iron binding capacity (tibc) test is available in most states. It is currently unavailable in 6 states:
Everywhere else you can order confidentially and collect your sample at a certified site. Browse by state →
Frequently asked questions
What does a high TIBC mean?
A high TIBC often suggests iron deficiency, but it can also occur with other conditions. Only your doctor can determine what it means for you.
What does a low TIBC mean?
A low TIBC may indicate iron overload or other health issues. Your doctor will consider your full test results.
Do I need to fast for this test?
Fasting is not typically required, but you may be asked to avoid iron supplements beforehand. Check with your doctor.
How long does it take to get results?
Results are usually available within 1 to 3 business days.