Sickle Cell Disease (cont.)
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Exams and Tests
Doctors can diagnose sickle cell disease before a child is born (prenatally). Couples who are at risk for passing on this disease to their offspring may want to talk with a genetic counselor about prenatal testing.
Sickle cell disease can be diagnosed at birth. Most states in the United States screen all newborns for sickle cell disease along with other common disorders. You can also request screening.
Soon after birth, a sample of blood is taken from the infant's heel and sent to a lab, where it is screened for the presence of sickle cell hemoglobin (hemoglobin S).
If one member of a couple has sickle cell disease or sickle cell trait, the other member should be tested before becoming pregnant. This test requires a blood sample, which is screened for the presence of hemoglobin S, hemoglobin C, or beta-thalassemia.
If one or both members of a couple carry a hemoglobin S gene or another abnormal hemoglobin gene, the couple may want to meet with a genetic counselor before becoming pregnant to learn more about their chances of having a child with sickle cell disease. Your doctor can help you find a genetic counselor to discuss a genetic test.
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