329 results found
Medical tests
… or a negative electrical charge, and they move in fluid when placed in an electrical field. Serum protein … poor nutrition. How To Prepare In general, there's nothing you have to do before this test, unless your doctor tells you …
Medical tests
… challenge test, spirometry is done before and after you exercise on a treadmill or an exercise bicycle. … effect exercise has on airflow. Most people with asthma have some decreased airflow during or after exercise. But … a diagnosis of asthma. Document that asthma is present when the diagnosis is unclear based on medical history, …
Medical tests
… Test Overview A tilt table test is used to check people who have fainted or who often feel light-headed. The results help your doctor know the cause of your fainting or feeling … to an upright position. It checks how your body responds when you change positions. Why It Is Done This test is done …
Medical tests
… such as transferrin or ferritin, or stored in body tissues. When red blood cells die, their iron is released and carried … for pregnancy, during breastfeeding, or at times when there are low levels of iron in the body (such as after … Check for too much or too little iron in the blood. See if your diet is providing enough iron. Find out if treatment to …
Medical tests
… Test Overview Body fat testing checks how much body fat you have. It may be done to find out if you have too much or too … fat at one or more places on your body. It is most accurate when a well-trained person measures fat thickness from …
Medical tests
… may be done. These tests look for possible problems with your baby. The tests may be called first-trimester … 1 out of a number less than 200 (such as 1 out of 100), you have a positive result. This means that your baby has a … screening may show that a baby doesn't have a birth defect when he or she does have it. This is called a false-negative …
Medical tests
… is done to: Find out whether the chromosomes of an adult have a change that can be passed on to a child. Find out … for the presence of the Y chromosome. This may be done when a newborn's sex is not clear. How To Prepare You do not need to do anything before you have this test. …
Medical tests
… nicotine—or the chemicals it produces, such as cotinine—in your blood or urine. It's usually done by testing a sample … smoke or use other forms of tobacco. All forms of tobacco have nicotine. This includes pipe tobacco, cigars, … show that you are using quit-smoking aids and not tobacco. When you stop using nicotine, it can take more than 2 weeks …
Medical tests
… a protein. Fetal fibronectin testing is sometimes done when someone has symptoms of preterm labour. If the test is negative, you probably aren't having preterm labour. But even if the … a protein. Fetal fibronectin testing is sometimes done when someone has symptoms of preterm labour. If the test is …
Medical tests
… cells , white blood cells , and platelets . A CBC helps your doctor check any symptoms that you may have, such as weakness, fatigue, or bruising. A CBC also … cells are bigger than red blood cells but fewer in number. When a person has a bacterial infection, the number of white …
