Viral meningitis is common and contagious, but it is rarely serious or fatal and does not require antibiotics. The more serious meningococcal bacteria are the leading cause of meningitis in adolescents ages 11 to17, and while theyâre rare, they can be fatal.
Test Overview. A tonometry test measures the pressure inside your eye, which is called intraocular pressure (IOP). This test is used to check for glaucoma, an eye disease that can cause blindness by damaging the nerve in the back of the eye (optic nerve ).
A radioactive iodine uptake (RAIU) is one of two kinds of scans used to diagnose thyroid diseases. The other is called a thyroid scan. An RAIU shows how well your thyroid is functioning. A thyroid scan shows the size, shape, and position of the gland. Your doctor may recommend an RAIU scan if you have symptoms of an overactive thyroid, blood work indicating an overactive thyroid, or an enlarged thyroid gland.