82 results found
Medical tests
… waves to form an image of the retina on a computer screen. Ultrasound. This test uses sound waves to form the image. … the eyes. This test usually takes about 30 minutes. Eye ultrasound Eyes closed: You sit in a chair with your eyes closed. The doctor puts ultrasound gel on your eyelid. Then the doctor gently moves …
Medical tests
… tests may be used. Nuchal translucency test. This test uses ultrasound to measure the thickness of the skin at the back … can be done using a sample of your blood and using ultrasound to measure the thickness of the skin at the back … a blood sample, usually from the arm. Nuchal translucency ultrasound test A small, hand-held device is moved over your …
Medical tests
… that affects how much calcium is in the blood ( hyperparathyroidism ), vitamin D deficiency, or damaged liver … Paget's disease. The test can also check for too much parathyroid hormone. This is the hormone that controls bone …
Medical tests
… absorb. Phosphate in the body. Certain hormones , including parathyroid hormone , calcitonin , and estrogen in the body. … your kidneys are working. Check for problems with the parathyroid glands . A urine calcium test is not as helpful as a …
Medical tests
… absorb. Phosphate in the body. Certain hormones , including parathyroid hormone , calcitonin , and estrogen in the body. … test may be done: To check for problems with the parathyroid glands or kidneys, certain types of cancers and bone …
Medical tests
… vagina or by putting a long, thin needle through the belly. Ultrasound is used to guide the catheter or needle to the … on your back on an examination table with your belly bare. Ultrasound will be used to help your doctor guide the needle … to the placenta. Gel will be rubbed on your belly. An ultrasound device (transducer) will be moved over your …
Medical tests
… screening is a test done during pregnancy. It uses ultrasound to measure the thickness of the fluid buildup at … a nuchal translucency test is done by a specially trained ultrasound technologist. But it may be done by a radiologist … you need a full bladder for the test, tell your doctor or ultrasound technologist if your bladder is so full that …
Medical tests
… at for cancer cells. For a transrectal prostate biopsy, an ultrasound probe is inserted into the rectum . Guided by ultrasound, a spring-loaded needle is used to take samples … the perineum, the area between the scrotum and anus. While ultrasound is often used to guide the sampling, other ways …
Medical tests
… be cleaned with an antiseptic. Your doctor will use a fetal ultrasound to check the position of your fetus and the placenta . Ultrasound uses sound waves to make a picture of the uterus, … heart rate can also be watched during the test using ultrasound. With the ultrasound picture as a guide, your …
Medical tests
… tracer and a special probe to measure how much tracer the thyroid gland absorbs from the blood. The test can show how much tracer is absorbed by the thyroid gland. The RAIU test often is done along with a thyroid scan, which shows if the tracer is evenly spread in …
