165 results found
Medical tests
… body gets the energy it needs from carbohydrate in your diet. But stored fat is broken down and ketones are made if … especially when that person is sick. Monitor a person on a low-carbohydrate diet and/or high-fat diet. Monitor a person … Urine test Collect a urine sample in a clean container. Follow the manufacturer's directions on the bottle of test …
Medical tests
… by the intestines, and its level in blood and urine is low. Why It Is Done A test for D-xylose is done to: Check to … other foreign matter in the urine sample. You will not be allowed to eat until the test is completed. How It Feels … the amount of D-xylose in the blood and urine will be very low. Normal Each lab has a different range for what's …
Medical tests
… is found in the urine. Kidney problems can cause high or low levels of phosphate in the urine. High levels of … ( hyperparathyroidism ). Too much vitamin D in the body. Low values Low urine phosphate levels may be caused by: An underactive …
Medical tests
… and electrolytes in the body. Find out if you have swallowed a poison, such as rubbing alcohol, wood alcohol, or … kidneys to lose water and produce large amounts of urine. Low values Low levels may be caused by: Too much water in the body. A …
Medical tests
… intestines stick out through the belly wall. Normally, low levels of AFP can be found in the blood of a pregnant woman. No AFP (or only a very low level) is generally found in the blood of healthy men or … a month or two before the woman gives birth, and then it slowly decreases. Values are generally slightly higher for …
Medical tests
… ovarian function before age 40 (premature ovarian failure). Low egg supply (ovarian reserve). Menopause has occurred. … values in children may mean that puberty is about to start. Low values Low FSH values may mean: A woman is not producing eggs …
Medical tests
… morning hours and are highest about 7 a.m. They drop very low in the evening and during the early phase of sleep. But … infection (sepsis) can cause high cortisol levels. Low values A low level of cortisol in the blood can be caused by: …
Medical tests
… back to the lungs so it can be exhaled. If the RBC count is low (anemia), the body may not be getting the oxygen it … count is normal, the MPV can still be too high or too low. Why It Is Done A CBC may be done as part of a regular … diseases like cancer, or problems with the bone marrow. Low values Red blood cells (RBC). Anemia lowers RBC values. …
Medical tests
… embolism . This is a blood clot that prevents normal blood flow in the lung. Two types of lung scans are usually done … done to: Find a blood clot that is preventing normal blood flow to part of a lung. Look at the flow of blood or air through the lungs. See which parts of …
Medical tests
… reticulocyte counts to rise, to help you adjust to the lower oxygen levels at high altitudes. Why It Is Done A … Wrap an elastic band around your upper arm to stop the flow of blood. This makes the veins below the band larger so it is easier to put a needle into the …
