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Medical tests
… time (PTT) is a blood test that measures the time it takes your blood to clot. A PTT test can be used to check for bleeding problems. Blood clotting factors are needed for blood to clot (coagulation). The partial … the site. Results Normal Each lab has a different range for what's normal. Your lab report should show the range that …
Medical tests
… On this page: Overview Why It Is Done Results Overview Your doctor may take a sample, or biopsy, of abnormal … The injection can be painful. But local anesthetic is needed when the biopsy is likely to be more painful than the … if any of the following are true: Your doctor is not sure what type of abnormal tissue is present. Warts have not …
Medical tests
… Information Test Overview A mental health assessment gives your doctor a complete picture of your emotional state. It … child acts for a couple of days. Your child's teacher may need to answer questions about how your child acts at … as well as that of your family members. He or she will ask what medicines you take. Your doctor may test your reflexes, …
Medical tests
… D test measures the amount of vitamin D in the blood. Your body needs vitamin D to absorb calcium . Calcium keeps your bones … the site. Results Normal Each lab has a different range for what's normal. Your lab report should show the range that …
Medical tests
… in the blood. Folate is one of many B vitamins. The body needs folate for normal growth and to make red blood cells … usually affected by the amount of folate and folic acid in your diet each day. Folate deficiency can result in a type … the site. Results Normal Each lab has a different range for what's normal. Your lab report should show the range that …
Medical tests
… takes pictures of the organs and other structures in your upper belly. It uses sound waves to show images on a … wastes from the blood. They also make urine. If your doctor needs more details about a specific organ in the upper part … to remove fluid from the belly cavity. How To Prepare What you need to do depends on the reason for the …
Medical tests
… Test Overview A breath alcohol test is an estimate of your blood alcohol concentration (BAC). The test measures … the instructions exactly. Note any special instructions you need to follow before you take the test. Blow into the … See the test instructions for how to read your results and what they mean. Store the testing device correctly. If the …
Medical tests
… Overview A chest X-ray is a picture of the chest that shows your heart, lungs, airway, blood vessels, and lymph nodes . … done. Doctors may not always get the information they need from a chest X-ray to find the cause of a problem. If … of the body. But other views may be needed, depending on what your doctor is looking for. In an emergency, only one …
Medical tests
… (T3) and thyroxine (T4). T3 and T4 help control your body's metabolism . Triiodothyronine (T3) and thyroxine (T4) are needed for normal growth of the brain, especially during the … at the site. Results Each lab has a different range for what's normal. Your lab report should show the range that …
Medical tests
… serious problems. So some babies who develop jaundice may need treatment to lower their bilirubin levels. Why It Is … before the test. For children, there's generally nothing you have to do before this test, unless your doctor tells … Normal values in adults Each lab has a different range for what's normal. Your lab report should show the range that …