Transposition of the Great Arteries

Abstract

Routine Laboratory StudiesRoutine blood counts and urinalyses were obtained in all children, and the hematocrit was determined in the great majority. Except for slight proteinuria in 4 patients, routine urinalysis was unremarkable. Platelets were described as decreased on routine peripheral blood smear in 7 patients. Bone-marrow puncture in 1 of these revealed a hypocellular marrow. A platelet count of 31,000 was found in another. This patient also had a poor clot retraction and a low prothrombin consumption.Review of serial hemoglobin determinations in many patients confirmed the findings previously reported.³¹ The "physiologic anemia" normally present by two months of . . .