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Tests could include:
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D-Dimer Assay Test
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Vascular MRI
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Your health care provider will perform a physical exam. The exam may show a red, swollen, or tender leg.
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Deep vein thrombosis can be detected through venography and radionuclide venography, Doppler ultrasonography, and impedance plethysmography. Venography is the most accurate test, but it is not used much, because it is often painful, expensive, exp...
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During a physical examination, a health care provider studies a patient''s body to determine the presence or absence of physical problems.
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This test uses ultrasound to examine the blood flow in the major arteries and veins in the arms and legs. The test is done in the ultrasound or radiology department or in a peripheral vascular lab.
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Fibrinogen is a protein produced by the liver. This protein helps stop bleeding by helping blood clots to form.
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Fibrinogen(Factor I) is a protein that originates in the liver. It is converted to fibrin during the blood-clotting process(coagulation).The fibrinogen test aids in the diagnosis of suspected clotting or bleeding disorders caused by fibrinogen abn...
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Limb plethysmography is a test that compares blood pressure in the legs and arms.This test may be done in the health care provider''s office or in a hospital. You will be asked to lie in a partially propped-up position.Three blood pressure cuffs ar...
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Antithrombin III is a blood test that measures the amount of antithrombin III(AT III), a protein that helps control blood clotting.Blood is typically drawn from a vein, usually from the inside of the elbow or the back of the hand. The site is clea...
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Lower extremity venography is a test used to see the veins in the leg. X-rays are a form of electromagnetic radiation like light, but of higher energy, so they can go through the body to form an image on film.
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Venography is a study of veins in the body. Contrast medium (x-ray dye) is injected into the veins. This helps the blood vessels show clearly on x-ray pictures. X-rays of the veins are then taken.
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Partial thromboplastin time(PTT) is a blood test that looks at how long it takes for blood to clot. It can help tell if you have bleeding or clotting problems.The health care provider uses a needle to take blood from one of your veins.
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The partial thromboplastin time(PTT) test is a blood test that is done to investigate bleeding disorders and to monitor patients taking an anticlotting drug(heparin).Blood clotting(coagulation) depends on the action of substances in the blood call...
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Prothrombin time(PT) is a blood test that measures the time it takes for the liquid portion(plasma) of your blood to clot.
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The prothrombin time test belongs to a group of blood tests that assess the clotting ability of blood. The test is also known as the pro time or PT test.The PT test is used to monitor patients taking certain medications as well as to help diagnose...
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A complete blood count(CBC) test measures the following:.The number of red blood cells(RBCs) The number of white blood cells(WBCs) The total amount of hemoglobin in the blood The fraction of the blood composed of red blood cells( hematocrit) The s...
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One of the most commonly ordered clinical laboratory tests, a blood count, also called a complete blood count(CBC), is a basic evaluation of the cells(red blood cells, white blood cells, and platelets) suspended in the liquid part of the blood(pla...
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A complete blood count(CBC) is a series of tests used to evaluate the composition and concentration of the cellular components of blood. It consists of the following tests: red blood cell(RBC) count, white blood cell(WBC) count, and platelet count...
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The clinical laboratory test that evaluates the three main cellular components of peripheral blood(red cells, white cells, and platelets) is called the"complete blood count"(CBC). It is used commonly to assess whether a patient is anemic(low red c...
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A complete blood count(CBC) is a series of tests used to evaluate the composition and concentration of the cellular components of blood. It consists of the following tests: red blood cell(RBC) count, white blood cell(WBC) count, and platelet count...
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Impedance plethysmography, also called impedance test or blood flow or impedance phlebography, is a non-invasive test that uses electrical monitoring in the form of resistance(impedance) changes to measure blood flow in veins of the leg. Informati...
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Plethysmography is a test used to measure changes in blood flow or air volume in different parts of the body. It may be done to check for blood clots in the arms and legs, or to measure how much air you can hold in your lungs.Penile pulse volume r...
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A venogram is a way to look at veins in your body using x-rays and a special dye called contrast. It is most often use to look at veins in the legs and belly area(abdomen).X-rays are a form of electromagnetic radiation like light, but of higher en...
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Venography is an x-ray test that provides an image of the leg veins after a contrast dye is injected into a vein in the patient''s foot.Venography is primarily performed to diagnose deep vein thrombosis(a condition that can lead to pulmonary emboli...
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Phlebography is an x-ray test that provides an image of the leg veins after a contrast dye is injected into a vein in the patient''s foot.Phlebography is primarily performed to diagnose deep vein thrombosis—a condition in which clots form in ...
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Phlebography is an x ray test that provides an image of the leg veins after a contrast dye is injected into a vein in the patient''s foot.Phlebography is primarily performed to diagnose deep vein thrombosis—a condition in which clots form in ...
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Ultrasound involves the use of high-frequency sound waves to create images of organs and systems within the body.An ultrasound machine creates images that allow various organs in the body to be examined. The machine sends out high-frequency sound ...
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Ultrasonography is a diagnostic technique that involves directing high frequency sound waves at tissues in the body to generate images of anatomical structures. Ultrasonography is also called sonography, diagnostic sonography, and echocardiography...
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Detailed information on ultrasonograpy, also called sonography including information on how the procedure is performed
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Detailed information on ultrasound and the potential risks and benefits An ultrasound scan is a diagnostic technique which uses high-frequency sound
waves to create an image of the internal organs. A screening ultrasound is sometimes done during the course of a pregnancy to monitor normal fetal growth and verify the due date. Ultrasounds may be performed at various times throughout pregnancy for different reasons:
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A thyroid ultrasound, or sonogram, is a diagnostic imaging technique used to evaluate the structure of the thyroid gland. The thyroid is an endocrine gland, which means that it releases its secretions directly into the bloodstream or lymph.
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My Ob/Gyn said they found fluid in the baby's kidneys during my 20-week ultrasound, so I have to have a level 2 ultrasound done. What does this mean?
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Diagnostic medical sonography, or ultrasound, is a technique using high frequency sound to create images of specific areas of the body to diagnose various pathologies. The diagnostic medical sonographer performs examinations, records anatomic cond...
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Ultrasonography is the study of internal organs or blood vessels using high-frequency sound waves. The actual test is called an ultrasound scan or sonogram.
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Since diagnostic sonography utilizes a nonionizing form of energy, there are no known bioeffects. Thus, diagnostic sonography is applied to a large spectrum of clinical disorders, including obstetrical, gynecological, abdominal, urologic, pediatri...
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Magnetic resonance imaging(MRI) is a noninvasive way to take pictures of the body.Unlike x-rays and computed tomographic( CT) scans, which use radiation, MRI uses powerful magnets and radio waves. The MRI scanner contains the magnet.
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Cardiac nuclear imaging is also called a "perfusion scan.” A radioactive tracer is delivered into the bloodstream. Then a camera scans the tracer in the blood as it flows through the heart muscle.
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Detailed information on magnetic resonance imaging, including how the image is performed and what happens following the procedure
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New MRI machines and new techniques result in images that show prostate cancer in much greater detail, allowing biopsies to be targeted more precisely, and thus cancer staging can be more accurate as well.
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Magnetic resonance imaging (MRI) is a test that lets your doctor see detailed pictures of the inside of your body. MRI combines the use of strong magnets and radio waves to form an MRI image.
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Studies have found that MRI tests used in addition to mammography detected more cancers in women at high risk for breast cancer. Women at average risk would not necessarily benefit from the additional testing.
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A Harvard Medical School physician answers your question about the safety of MRIs for those who have stents.
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When I had an MRI of my knee, I was told the test was dangerous for people who have metal devices in their bodies. Since then, I developed angina and my cardiologist put in a metal stent. If I need an MRI in the future, will I be able to get one?
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For women at high genetic risk, adding MRI screening to mammography may improve early detection of breast cancer.
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Is a regular MRI more accurate then an open MRI?
Diana Post, M.D., is an assistant professor of medicine at Harvard Medical School and a member of the Department of Medicine at Brigham and Women's Hospital.
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Persons with pacemakers cannot get an MRI because it conflicts with the pacemaker's function. Future pacemakers will likely be made MRI-safe, but this will probably take at least several more years.
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How safe is it for a baby who is 6 months old to have an MRI?
Claire McCarthy, M.D., is a senior medical editor for Harvard Health Publications. She is an instructor in pediatrics at Harvard Medical School, an attending physician at Children's Hospital of Boston, and co-director of the pediatrics department at Martha Eliot Health Center, a neighborhood health service of Children's Hospital. The author of two books, "Learning How the Heart Beats" and "Everyone's Children", Dr. McCarthy was a regular columnist for "Sesame Street Parents Magazine" from 1995 to 1998 and is currently a contributing editor for "Parenting Magazine".
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In some cases, chemical agents such as gadolinium can be injected to improve the contrast between healthy and diseased tissue.A single MRI exposure produces a two-dimensional image of a slice through the entire target area. A series of these image...
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Magnetic resonance imaging(MRI) is a unique and versatile medical imaging modality. Doctors can obtain highly refined images of the body''s interior using MRI.
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Magnetic resonance imaging(MRI) scanners rely on the principles of atomic nuclear-spin resonance. Using strong magnetic fields and radio waves, MRI collects and correlates deflections caused by atoms into images.
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Magnetic resonance imaging(MRI) is one of the newest diagnostic medical imaging technologies that uses strong magnets and pulses of radio waves to manipulate the natural magnetic properties in the body to generate a visible image. In the field of ...
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Magnetic resonance imaging(MRI) is the newest, and perhaps most versatile, medical imaging technology available. Doctors can get highly refined images of the body''s interior without surgery, using MRI.
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Magnetic resonance imaging(MRI) is a diagnostic imaging procedure that uses radio waves, a magnetic field, and a computer to generate images of the anatomy.MRI is used to visualize the body to assist doctors in their efforts to diagnose certain di...
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Magnetic resonance imaging(MRI) is one of the newest, and perhaps most versatile, medical imaging technology available. Doctors can get highly refined images of the body''s interior without surgery using MRI.
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Detailed information on magnetic resonance imaging (MRI), including information on how the procedure is performed
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People with certain kinds of pacemakers or ICDs can safely undergo an MRI, as long as a series of safety precautions is carefully followed.
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These are primary hemostasis, which is the interaction of the injured blood vessel and platelets; secondary hemostasis, which is referred to historically as the blood coagulation process; and tertiary hemostasis, which is the process of fibrinolys...
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