265 results found
Medical tests
… Test Overview Partial thromboplastin 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 …
Medical tests
… Test Overview A chemistry screen is a blood test that measures the levels of several substances in the blood (such as electrolytes ). A chemistry screen tells your … Some chemistry screens look at more substances in the blood than others do. The most complete form of a chemistry …
Medical tests
… A C-peptide test measures the level of this peptide in the blood. It is generally found in amounts equal to insulin . … body use and control the amount of sugar (glucose) in the blood. Insulin allows glucose to enter body cells where it is used for energy. The level of C-peptide in the blood can show how much insulin is being made by the …
Medical tests
… Test Overview A d-dimer test is a blood test that measures a substance that is released when a blood clot breaks up. Doctors order the d-dimer test, along … with other lab tests and imaging scans, to help check for blood-clotting problems. A d-dimer test can also be used to …
Medical tests
… and stress echocardiograms. A Doppler echo shows blood flow through the heart and blood vessels. It can be done during any of these types of … is usually done to find out if you might have decreased blood flow to your heart ( coronary artery disease ). …
Medical tests
… dye and camera ( fluoroscopy ) to take pictures of the blood flow in the blood vessels of the lung . During an angiogram, a thin tube called a catheter is placed into a femoral blood vessel in the groin (femoral vein) or just above the …
Medical tests
… It Is Done Results Test Overview The blood supply to your hand normally comes from two arteries: … procedure called the Allen test can be used to find out if blood flow to your hand is normal. This test checks to see if both of these blood vessels are open and working correctly. It may be done …
Medical tests
… Information Test Overview Prothrombin time (PT) is a blood test that measures how long it takes blood to clot. A prothrombin time test can be used to check … PT is also used to check whether medicine to prevent blood clots is working. A PT test may also be called an INR …
Medical tests
… Test Overview An iron test checks the amount of iron in the blood. Iron (Fe) is a mineral needed for hemoglobin, the protein in red blood cells that carries oxygen. Iron is also needed for … About 70% of the body's iron is bound to hemoglobin in red blood cells . The rest is bound to other proteins, such as …
Medical tests
… Test Overview A rheumatoid factor (RF) blood test measures the amount of the RF antibody present in the blood. Normally, antibodies are produced by the immune … person can have a high RF level. The amount of RF in blood can be measured in two ways: Agglutination tests. One …
