Every once in awhile the chain on a chainsaw will bind up and be hard to move, as mine did the other day. Even the engine has to labor to move it. Its not a big deal and very easy to fix. What causes it is small pieces of woodchips and sawdust that get between the drive teeth and the groove (gauge) of the bar.
In this article. An electrophysiology (EP) study is a test that records the electrical activity and the electrical pathways of your heart. This test is used to help determine the cause of your heart rhythm disturbance and the best treatment for you.
Overview. An electroencephalogram (EEG) is a test used to evaluate the electrical activity in the brain. Brain cells communicate with each other through electrical impulses, and an EEG can be used to help detect problems associated with this activity.n EEG is used to detect problems in the electrical activity of the brain that may be associated with certain brain disorders. The measurements given by an EEG are used to confirm, rule out, or provide information about disorders such as: 1  seizure disorders, including epilepsy. 2  head injury.