#july2020usmle2ck
A 32-year old diabetic woman delivered a large baby after difficult vaginal delivery. At labor, the head emerged first and then the shoulders were stuck behind the bony pelvis. The obstetrician had to use some tools and maneuvers to deliver the baby. The baby had a good cry and red pink color but his right arm was not moving. It was hanging on his side with medial rotation.
Which of these nerve roots are most likely affected?
A- C5 and C6
B–C6 and C7
C–C7 and C8
D–C8 and T1
A 32-year old diabetic woman delivered a large baby after difficult vaginal delivery. At labor, the head emerged first and then the shoulders were stuck behind the bony pelvis. The obstetrician had to use some tools and maneuvers to deliver the baby. The baby had a good cry and red pink color but his right arm was not moving. It was hanging on his side with medial rotation.
Which of these nerve roots are most likely affected?
A- C5 and C6
B–C6 and C7
C–C7 and C8
D–C8 and T1
