292 results found
Medical tests
… You may have been exposed to the hepatitis B virus. You are more likely to have been exposed to the virus if you inject … likely to be exposed to body fluids (such as if you are a health care worker). You've had other tests that show you … B Hepatitis B antibodies and/or antigens are found. More tests may be needed to see if you have an acute or …
Medical tests
… Blood levels of growth hormone (GH) can change quickly, so more than one blood sample may be taken on different days. Insulin-like growth factor 1 (IGF-1) levels change more slowly, and it may be the first test done. A health professional uses a needle to take a blood sample, …
Medical tests
… Tobacco smoke contains carbon monoxide. How It Is Done A health professional uses a needle to take a blood sample, … poisoning. Symptoms of carbon monoxide poisoning become more severe as the carbon monoxide levels increase. Women … red blood cells than men do. So women and children may have more severe symptoms at lower levels. …
Medical tests
… cells (erythrocytes) settle in a test tube in one hour. The more red cells that fall to the bottom of the test tube in … proteins cause red blood cells to stick together and fall more quickly than normal to the bottom of the tube. These … test, unless your doctor tells you to. How It Is Done A health professional uses a needle to take a blood sample, …
Medical tests
… ). A chemistry screen tells your doctor about your general health, helps look for certain problems, and finds out … specific problem is working. Some chemistry screens look at more substances in the blood than others do. The most … specific problem is working. Some chemistry screens look at more substances in the blood than others do. The most …
Medical tests
… as rheumatoid arthritis , scleroderma , and lupus . These health problems affect the connective tissues, such as the … not found. An abnormal (positive) result means that one or more of these antibodies were found. … not found. An abnormal (positive) result means that one or more of these antibodies were found. …
Medical tests
… rheumatoid arthritis ) and some infections. Sometimes a healthy person can have a high RF level. The amount of RF in … by the blood sample is measured. As levels of RF increase, more clumping occurs. This causes a cloudier sample and … solution (saline). A larger second number means there is more RF in the blood. So a titre of 1 to 80 shows more RF in …
Medical tests
… you to do. Tell your doctor ALL the medicines and natural health products you take. Some may increase the risk of … site. How It Feels Collecting blood from an artery is more painful than collecting it from a vein. That's because … or pinch as the needle goes through the skin. You may feel more pain if the person drawing your blood has a hard time …
Medical tests
… out the medical test information form . How It Is Done The health professional drawing your blood will: Wrap an elastic … the needle site with alcohol. Put the needle into the vein. More than one needle stick may be needed. Attach a tube to … a family history of high homocysteine levels. Drinking more than 2 to 3 cups of coffee a day over many years. …
Medical tests
… D to absorb calcium . Calcium keeps your bones and muscles healthy and strong. If your muscles don't get enough … If you don't get enough vitamin D throughout life, you are more likely to have thin and brittle bones ( osteoporosis ) … If you don't get enough vitamin D throughout life, you are more likely to have thin and brittle bones ( osteoporosis ) …
