q2 - kola

[ArchivalUser]

A full-term infant is born after a normal pregnancy; delivery, however, is complicated by marginal placental separation. At 12 h of age, the child, although appearing to be in good health, passes a bloody meconium stool. For determining the cause of the bleeding, which of the following diagnostic procedures should be performed first?

Options:

1. A barium enema

2. An Apt test

3. Gastric lavage with normal saline

4. An upper gastrointestinal series

5. A platelet count, prothrombin time, and partial thromboplastin time

[ArchivalUser]

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[ArchivalUser]

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[ArchivalUser]

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[ArchivalUser]

The Correct Answer is: An Apt test.Hematemesis and melena are not uncommon in the neonatal period, especially if gross placental bleeding has occurred at the time of delivery. The diagnostic procedure that should be done first is the Apt test, which differentiates fetal from adult hemoglobin in a bloody specimen. If the blood in an affected infant™s gastric contents or stool is maternal in origin, further workup of the infant is obviated.

[ArchivalUser]

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