A 3-hour-old male neonate is observed to have profuse drooling and coughing in the nursery. The patient was born at 39-weeks gestational age to a 27-year-old, gravida 2 para 2, mother via vaginal delivery
. The pregnancy was complicated by polyhydramnios
. Cardiac exam reveals a harsh holosystolic murmur
most prominent at the left lower sternal
border. The nurse
attempts to pass a nasogastric tube
into the patient’s stomach but encounters resistance after advancing 12 cm. Which of the following physical exam findings will most likely also be present in this patient?