272 results found
Medical tests
… 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 … and other factors. This means that a value that falls outside the normal values listed here may still be normal …
Medical tests
… last ate. Several random measurements may be taken throughout the day. Random testing is useful because glucose levels … test measures blood sugar exactly 2 hours after you start eating a meal. This test is most often done at home when you … (gestational diabetes). Determine if an abnormally low blood sugar level ( hypoglycemia ) is present. A test to …
Medical tests
… aches and pains. If you don't get enough vitamin D throughout life, you are more likely to have thin and brittle bones … Vitamin D is found in foods such as egg yolks, liver, and saltwater fish. It is added to many food products, such as … test. Why It Is Done You may need this test if you: Have low levels of calcium or phosphate . Have osteoporosis or …
Medical tests
… ) is present. Check to see if iron treatment to raise or lower the iron level is working. How To Prepare In general, … as the pancreas or heart, can affect how the organ works. Low values Low ferritin levels often mean an iron deficiency is …
Medical tests
… find the cause of symptoms. The test can give information about your health and problems you may have. The kidneys take … your skin away from the urine stream. After the urine has flowed for several seconds, place the collection container in … enough fluid, loss of too much fluid (excessive vomiting, sweating, or diarrhea), or substances (such as sugar or …
Medical tests
… different times and from different views. A small bowel follow-through may be done right away after this test to look … Belly pain that is relieved or gets worse while eating. Severe heartburn or heartburn that occurs often. How … the test, you may be asked to take a laxative to help clean out your intestines. If your stomach can't empty well on its …
Medical tests
… of bilirubin in a blood sample. Bilirubin is a brownish yellow substance found in bile . It is produced when the liver … are high, the skin and whites of the eyes may look yellow (jaundice). Jaundice may be caused by liver disease ( … or the effects of medicines that can damage the liver. Find out if something is blocking the bile ducts. This may occur …
Medical tests
… of testosterone in the body. When the testosterone level is low, the pituitary gland releases a hormone called … Before puberty , the testosterone level in boys is normally low. Testosterone increases during puberty. This causes boys … to men. But testosterone plays an important role throughout the body in both men and women. It affects the brain, …
Medical tests
… other tests are done to find the right medicine for treating the infection. This is called sensitivity testing. … how soon before the test to stop eating and drinking. Follow the instructions exactly about when to stop eating and … make you sleepy during the test. To collect the sample, a salt solution may be washed into the airway and then …
Medical tests
… This hormone goes up fast just before ovulation occurs, about midway through the cycle (day 14 of a 28-day cycle). … of your urine can be tested for LH. It's important to follow the package directions exactly if you are doing the test … chemotherapy, cancer, or injury. Klinefelter syndrome . Low values Low luteinizing hormone values may mean: Anorexia …
