Test Detail
Understanding the Test
Interpreting Results
FAQ's
Other Tests
Content created by
Written by
Dr. Shreya Gupta
BDS, MDS - Oral and Maxillofacial Pathology
Reviewed by
Dr. Ashish Ranjan
MBBS, MD (Pharmacology)
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Total Iron Binding Capacity

(TIBC)
You need to provide
Blood
This test is for
Male, Female
Test Preparation
  1. Avoid iron supplements for minimum 24 hours prior to specimen collection.
  2. Overnight fasting is preferred.

Understanding Total Iron Binding Capacity


What is Total Iron Binding Capacity?

Total Iron Binding Capacity (TIBC) test helps to check the iron binding capacity of a protein transferrin. It helps to diagnose excess or deficiency of iron in the blood. This test is recommended if a doctor suspects the symptoms of iron deficiency or excess such as fatigue, hair loss, paleness, delayed mental growth, irregular heart rhythm, weight loss and joints pain.
Lack of iron in diet, pregnancy or excessive menstrual blood loss can lead to iron deficiency. Genetic disorders such as sickle cell anemia, hemolytic anemia, hemochromatosis and liver damage can cause iron toxicity .

What is Total Iron Binding Capacity used for?

The TIBC Test is performed:

·         To confirm anemia due to iron deficiency detected in routine checkups

·         To determine excess or deficiency of iron in the body

·         To determine the capacity of the blood to transport iron


Interpreting Total Iron Binding Capacity results


Interpretations

Normal Range: 250 to 425µg/dL

TIBC Test results are usually interpreted in combination with other iron tests as follows:


Iron

TIBC

UIBC

Transferrin Saturation

Ferritin

Condition

Low

High

High

Low

Low

Iron Deficiency

High

Low

Low

High

High

Hemochromatosis, Hemosiderosis

Low

Low/Normal

Low/Normal

Low/Normal

High/Normal

Chronic Illness

High

Normal/Low

Low/Normal

High

High

Hemolytic Anemia

Normal/High

Normal/Low

Low/Normal

High

High

Sideroblastic Anemia

High

Normal

Low

High

Normal

Iron Poisoning

Answers to Patient Concerns & Frequently Asked Questions (FAQs) about Total Iron Binding Capacity


Frequently Asked Questions about Total Iron Binding Capacity

Q. Is there any preparation required before the TIBC test?

A fasting period of 8 to 12 hours is prescribed before the test is performed. Inform the doctor of any medications you may be taking. No other specific preparations are usually required before the TIBC Test.

Q. What additional tests can be prescribed by your doctor in case of abnormal TIBC test result?

Additional tests that may be prescribed in case of abnormal TIBC Test result are: · Unsaturated Iron Binding Capacity Test · Complete Blood Count · Hemoglobin and Hematocrit Test · Liver Function Test

Q. Which conditions can cause iron deficiency?

Iron deficiency is a condition which occurs if the iron content of blood falls below the normal levels. Conditions that may cause iron deficiency include: · Iron deficiency anemia · Hemolytic anemia · Malnutrition · Chronic blood loss · Bleeding disorders · Long-term infections · Pregnancy · Cancers, especially lymphoma or leukemia

Q. What are the common symptoms of iron deficiency?

Common signs and symptoms which appear during chronic iron deficiency include chronic unexplained fatigue and tiredness, weakness, dizziness and headaches, pale skin (pallor), and irritability.

Q. What is hemochromatosis?

Hemochromatosis is a condition that causes the accumulation of iron in the body to higher than normal levels. It is of two types, Hereditary Hemochromatosis and Secondary Hemochromatosis. Hereditary hemochromatosis is caused due to a genetic mutation which causes the body to absorb iron in excessive amounts from food. Secondary Hemochromatosis is commonly found in patients suffering from bleeding disorders who need multiple blood transfusions and iron accumulation from each. The symptoms of hemochromatosis in the early stages include joint pain, abdominal pain, fatigue, and weakness. In later stages, the condition may progress to cause more severe symptoms including diabetes, loss of libido, impotency, heart failure, and liver failure.

Q. What is hemosiderosis?

Hemosiderosis is a condition caused due to excess accumulation of an iron-storing protein called hemosiderin in the body. Hemosiderin is formed when Red Blood Cells (RBCs) die at the end of their lifespan. Iron in the RBCs is subsequently stored in Hemosiderin to be recycled later. Hemosiderosis is caused by two factors which include internal bleeding in organs and rapid degeneration of RBCs. Accumulation of Hemosiderin may not show symptoms in the early stages. Symptoms that may appear in later stages with excess accumulation include heavy coughing which may be accompanied by blood, breathing difficulty accompanied by wheezing, fatigue, and weakness, shortness of breath during physical activity, systemic pain, rapid weight loss, and slow growth in children.

Q. Which conditions can cause iron overload?

Iron overload is a condition which occurs when the iron levels of blood rise to higher than the normal levels. Conditions that can cause iron overload include: · Hemolysis · Iron poisoning due to overconsumption of iron in diet · Hemochromatosis (excessive iron accumulation) · Multiple blood transfusions · Liver diseases

Q. What are the common symptoms of iron overload?

Common symptoms of iron overload include joint pain, fatigue and weakness, rapid weight loss, pain in chest and abdomen, joint pain, loss of sex drive, and liver damage.

Q. What factors can affect TIBC Test results?

Factors that can affect TIBC Test results include: · Anemia · Pregnancy · Oral contraceptives · Recent blood transfusion · Malnutrition · Liver diseases · Inflammation

Q. Is there any risk associated with this test?

There is no risk associated with the test. However, since this test involves a needle prick to withdraw the blood sample, in very rare cases, a patient may experience increased bleeding, hematoma formation (blood collection under the skin), bruising or infection at the site of needle prick.
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