The direct Coombs' test is done to assess the:
a. Maturity of the baby's lungs
b. Total bilirubin of the baby's blood
c. Amount of Rh-positive antibodies in the mother's blood
d. Presence of antibody-coated Rh-positive red blood cells in the baby's blood
ANS: D
The direct Coombs' test determines whether the infant has hemolytic disease caused by Rh incompatibility by revealing the presence of antibody-coated Rh-positive red blood cells in the baby's blood. An indirect Coombs' test measures the amount of Rh-positive antibodies in the mother's blood.
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