329 results found
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
… weeks 15 and 20 to look at the baby's genes. It can also be used later in pregnancy. Amniocentesis for genetic testing … neural tube defects. You may choose to have this test because: You are concerned about your baby because of your age. As you get older, you have a greater chance …
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 find germs (such as bacteria or a fungus ) that can cause an infection. A sample of cells from the back of your … no germs grow, the culture is negative. If germs that can cause infection grow, the culture is positive. The type of … a throat culture include: Candida albicans . This fungus causes thrush , an infection of the mouth and tongue and …
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 …
Medical tests
… Test Overview A sonohysterography test uses ultrasound to look at the inside of your uterus. A salt … image. Ultrasound images from this test can help find the cause of bleeding or problems getting pregnant. If a contrast fluid is used, your doctor will look at the fallopian tubes too. This …
