HB Variant, CBC, Sickling

About The Test :

The Hemoglobin Variant Test is a blood test that checks for abnormal forms of hemoglobin — the protein in red blood cells that carries oxygen throughout the body.

Humans usually have Hemoglobin A (HbA) as the main type, but some people inherit variants due to genetic changes. These variants can lead to conditions such as:

• Sickle Cell Disease (HbS)
• Thalassemia
• Hemoglobin C, D, E, or other rare variants

Why Consider this Test ?

To Diagnose Blood Disorders

If someone has symptoms of anemia or abnormal red blood cells, this test helps identify if a hemoglobin disorder like sickle cell disease or thalassemia is the cause.

Common symptoms that may prompt testing:

• Chronic fatigue or weakness
• Shortness of breath
• Pale or yellowish skin (jaundice)
• Delayed growth in children
• Pain episodes (in sickle cell disease)

1. Newborn Screening
2. Family History of Hemoglobinopathies
3. Ethnic or Geographic Risk
4. Prenatal and Preconception Screening

Who should consider This Test ?

• Have anemia or unexplained symptoms
• Are from a high-risk ethnic group
• Have a family history of sickle cell or thalassemia
• Are planning a pregnancy (especially in high-risk populations)
• Are a newborn (routine screening)
• Have abnormal blood work and your doctor suspects a hemoglobinopathy

More About this test ?

The Hb Variant Test identifies abnormal types of hemoglobin in your blood. Hemoglobin is the protein in red blood cells that carries oxygen. Normally, adults have mostly Hemoglobin A (HbA), with small amounts of HbA2 and HbF.

Some people inherit mutations in the hemoglobin genes that produce abnormal hemoglobin (e.g., HbS, HbC, HbE, etc.), which can cause or contribute to blood disorders.