With regard to hemolytic diseases of the newborn, nurses should be aware that:
a. Rh incompatibility matters only when an Rh-negative offspring is born to an Rh-positive mother.
b. ABO incompatibility is more likely than Rh incompatibility to precipitate signif-icant anemia.
c. Exchange transfusions frequently are required in the treatment of hemolytic dis-orders.
d. The indirect Coombs' test is performed on the mother before birth; the direct Coombs' test is performed on the cord blood after birth.
D
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A Only the Rh-positive offspring of an Rh-negative mother is at risk.
B ABO incompatibility is more common than Rh incompatibility but causes less severe problems; significant anemia, for instance, is rare with ABO.
C Exchange transfers are needed infrequently because of the decrease in the inci-dence of severe hemolytic disease in newborns from Rh incompatibility.
D An indirect Coombs' test may be performed on the mother a few times during pregnancy.
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