Newborn girl is evaluated in the delivery room immediately after delivery

newborn girl is evaluated in the delivery room immediately after delivery. The infant was born at 41 weeks

gestation to a 23-year-old woman, gravida 2 para 1, via uncomplicated vaginal delivery. The mother was

previously healthy and had routine prenatal care. Serology was normal. The pregnancy was complicated by

polyhydramnios and gestational diabetes necessitating insulin. The infant’s vital signs are normal and birth weight

is 3.6 kg (7 lb 15 oz). Apgar scores were 7 and 9 at 1 and 5 minutes, respectively. Physical examination shows an

active, crying infant. Cardiac auscultation reveals a soft, 1/6 systolic murmur. The infant’s hands and feet are

cyanotic; the mucosal membranes are pink. The remainder of the examination is normal. Which of the following

tests is most likely to be abnormal?

  • QA. Blood culture
  • 0 B. Clavicle x-ray
  • 0 C. Contrast enema
  • 0 D. Glucose level
  • 0 E. Hearing screening
  • 0 F. Pulse oximetry

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