Effect of oral metrizamide on hematocrit and serum osmolality in the neonate.

Sixteen newborns and young infants, weighing between 800 and 5200 grams, received orally administered metrizamide for evaluation of suspected gastrointestinal pathology. Images were judged good to excellent in 14 cases. No effect of metrizamide on hematocrit and serum osmolality was noted. Metrizamide appears to be a relatively safe and effective agent for examination of the neonatal gastrointestinal tract.