how is erb's palsy diagnosed?

       Often, the newborn's inability to use the effected arm is recognized immediately or shortly after birth. Sometimes it is detected in the newborn nursery. Following a difficult delivery in particular, the possibility of a nerve injury should always be considered and ruled out. The baby's pediatrician can order a pediatric neurology consultation, a MRI of the shoulder, and/or electrical studies (called EMG's, or nerve conduction or nerve velocity studies), to identify and locate the point(s) of injury to the nerves.