When someone presents with facial paralysis, it’s not always necessary to get a battery of tests. It is important, however, to get the tests that are responsible for removing certain diagnoses from the list, such as a stroke or a brain tumor. These are very important things to rule out. However, when someone is trying to figure out, well, is this a patient who will benefit from one type of surgery versus another, then certain tests are possible to help determine if that patient is a good candidate. Things such as a nerve conduction study or an electromyogram, also known as an EMG can be performed to really assess what is it that’s going on between the facial nerve and its input into the facial muscles and how well that relationship exists.