The member has had a needle electromyographic (EMG) study to evaluate the condition either concurrently or within the past year. The requirement for needle EMG with NCV may be waived for persons on anti-coagulan
Needle EMG was additionally helpful in only 1 of 6 patients with normal conduction studies. The authors concluded that there is a wide spectrum of electrophysiological abnormalities in Bell's palsy. They stated that blink reflex latencies may be under-utilized in the assessment of the facial nerve...