To diagnose the condition, a doctor may perform different kinds of tests. One of which is the Kleihauer-Betke test. A doctor does this test to take a quantitative measurement of the red blood cells in a newborn baby's blood. He does this test to check if there's a risk for Rh incompatibility. Another test that a doctor may perform is the Rosete screening test. The doctor will use this to detect if there is any alloimmunization present. This usually occurs when there is a fetomaternal hemorrhage.
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