My husband as got a shooting pain is is right arm?

Cevical issue. Although your question is incomplete, the first that thing to consider is what are the other associated symptoms. Some patients who has this complaint maybe cardiac in origin. Such as ischemia. Assuming this is not the case, then another potential source is cervical radiculopathy, an irritation of the nerves arising from the cervical spine. An imaging study ordered by your doctor will help.