If the virus becomes active after being latent, it causes the disorder known as shingles, or herpes zoster. The virus spreads in the ganglion and to the nerves connecting to it. Nerves most often affected are those in the face or the trunk. The virus can also spread to the spinal cord and into the bloodstream.
About this Procedure. The sniff test is a fluoroscopic exam used to check how the diaphragm (the muscle that controls breathing) moves during activities such as breathing normally and inhaling rapidly. Your diaphragm normally moves down when you inhale, and up when you exhale.
Chest X-ray Test Overview. A chest X-ray test is a very common non-invasive radiology test that produces an image of the chest and the internal organs. To produce a chest X-ray test, the chest is briefly exposed to radiation from an X-ray machine and an image is produced on a film or into a digital computer.hest X-ray Test Overview. A chest X-ray test is a very common non-invasive radiology test that produces an image of the chest and the internal organs. To produce a chest X-ray test, the chest is briefly exposed to radiation from an X-ray machine and an image is produced on a film or into a digital computer.