329 results found
Medical tests
… brain, or nerves connecting them work. These problems may cause dizziness , vertigo , or loss of balance. Nystagmus … your head or nystagmus that does not go away may be caused by conditions that affect the inner ear, brain, or the … light meal or not eat for 3 to 4 hours before the test, because the test can cause nausea and vomiting. Do not wear …
Medical tests
… Your doctor will also want to know if you are pregnant or use birth control. And your doctor will want to hear about … such as chlamydia or herpes . To help find the cause of abnormal uterine bleeding. To look for problems like … , ovarian cysts , or uterine prolapse . To help find the cause of pelvic or belly pain. Before inserting an …
Medical tests
… see what type of seizures are occurring. EEG is the most useful and important test for checking if someone has … test or to sleep for only about 4 or 5 hours. This is because some types of brain activity can only be seen if you are … to different places on your head. A sticky paste is used to hold them in place. Instead of separate electrodes, …
Medical tests
… needle biopsy ). A numbing medicine ( local anesthetic ) is used to prevent pain during this procedure. Intravenous (IV) … . Computed tomography ( CT scan ) or a bone scan may be used to guide the biopsy needle. Why It Is Done A bone … ( osteomyelitis ) or if an infection is present. Find the cause of ongoing bone pain. Check bone problems seen on an …
Medical tests
… this nerve pathway or the muscles of the bladder wall can cause bladder dysfunction. During cystometry, your bladder is … this area. Why It Is Done Cystometry is done to: Find the cause of problems with the bladder or the muscle that holds … sphincter). Problems in one or both of these areas may cause uncontrolled urine leakage, an urgent feeling that you …
Medical tests
… or a disease, such as cancer. Other tests may also be used to check the lymph tissue sample, including a culture , … usually mean an infection. But the swelling can also be caused by a cut, a scratch, an insect bite, a tattoo, a drug … Why It Is Done Lymph node biopsy is done to: Check the cause of enlarged lymph nodes that do not return to normal …
Medical tests
… cortisol (or low ACTH and high cortisol levels) could be caused by a problem with the adrenal glands. Low levels of ACTH and cortisol could be caused by a problem with the pituitary gland. Overproduction of ACTH. This may be caused by an overactive pituitary gland, or sometimes by a …
Medical tests
… of the lower back (lumbar vertebrae) and a view of the 5 fused bones at the bottom of the spine (sacrum). … Sacrum/coccyx X-ray. It takes a detailed view of the 5 fused bones at the bottom of the spine (sacrum) and the 4 … Why It Is Done A spinal X-ray is done to: Find the cause of ongoing pain, numbness, or weakness. Check for …
Medical tests
… to get the right amount of calcium in your food because the body loses calcium every day. Foods rich in calcium … symptoms. Calcium levels need to be very high or low to cause symptoms. High calcium levels in the urine can cause kidney stones. Why It Is Done A urine calcium test is …
Medical tests
… Test Overview A herpes simplex virus (HSV) infection can cause small, painful sores that look like blisters on the skin … a sample from a sore can be tested to check if it is caused by the herpes virus. HSV testing may also be done using … for sexually transmitted infections (STIs). That's because a positive result only means you have been exposed to …
