You are called to a delivery of a term infant who was just born via vaginal delivery to a 23-year old G1P1. As you walk into the room, the nurses tell you that it was a difficult delivery because the infant “was stuck for a while.” On examination of the infant, you notice that he is LGA, and you feel crepitus over the left upper chest. Which of these factors does NOT put the infant at higher risk for the suspected diagnosis?

A term infant is born to a G2P2 mother via vaginal delivery that was complicated by shoulder dystocia. On exam, the infant’s left arm is rotated internally and adducted, extended at the elbow, and flexed at the wrist. You test a Moro reflex and note that it is asymmetric. Left hand grasp is intact. The infant is otherwise well appearing. What is the most likely injury?

On examination, a newborn has visible scalp swelling near the occiput immediately after birth. The area is ecchymotic and on palpation, the swelling appears to cross the midline. What is the most likely diagnosis?

You are called to see an infant who “just isn’t acting right.” Within 24 hours of birth, the infant has become more irritable and there are concerns about apneic episodes. Further workup is done and the infant is found have a subdural hemorrhage. Which of the follow statements is false regarding SDH?