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Reversible pure red cell hypoplasia in pregnancy.

PREGNANCY is normally a state of erythroid hyperplasia. Increased erythropoiesis during pregnancy is controlled by erythropoietin, which is augmented by the action of placental lactogen and inhibited by high levels of estrogen. 1 We describe a case of a patient with pure red cell hypoplasia during pregnancy that resolved completely in the postpartum period. Report of a Case On Jan 22, 1981, a 23-year-old primigravida came to the obstetric clinic at Naval Regional Medical Center (NRMC), Charleston, SC, for an initial prenatal visit at approximately 24 weeks' gestation. A routine hemoglobin level and hematocrit reading were noted to be 9.0 g/dL and 27.1%, respectively. Administration of ferrous sulfate, 325 mg, one tablet three times a day, was begun. A follow-up visit four weeks later revealed a hemoglobin level of 7.1 g/dL and a hematocrit reading of 24.3%. The patient denied noncompliance with respect to self-administration of the prescribed medication. The