At a Glance
Why Get Tested?
To determine if you have sickle cell trait or disease by measuring the presence and relative amount of hemoglobin S
When to Get Tested?
A blood sample drawn from a vein in your arm or obtained from the heel or finger of an infant
Test Preparation Needed?
None; however, if this test is used for diagnosis, the sample should not be drawn after a recent blood transfusion.