281 results found
Medical tests
… Swallowing Study On this page: Test Overview Why It Is Done How … Feels Risks Results Test Overview A swallowing study is a test that shows what your throat and … about 20 to 30 minutes. How It Feels You won't feel any pain from the X-ray. The barium liquid is thick and chalky, …
Medical tests
… spots in the pictures. Areas where the tracer collects in low amounts or does not show up are seen as dark spots. The … amount of the tracer is then injected. You will lie on your back on a table, and a large scanning camera will be placed right above you. It may move slowly above and around your body, scanning for the tracer …
Medical tests
… Through the belly (transabdominal) You will lie on your back on an examination table with your belly bare. … the cervix (transcervical) You will take off your clothes below the waist. You will have a paper or cloth covering … used to give the numbing medicine. There is usually no pain when the collecting needle is put in the belly. You may …
Medical tests
… eye. Here are some common tests that check for blurred or low vision. Visual acuity (sharpness) tests. These tests … can't focus exactly on the nerve layer ( retina ) at the back of the eye. This causes blurred vision. Refraction is … a stroke, head injury, or other condition that causes reduced blood flow to the brain. Colour vision tests These …
Medical tests
… chambers . The two upper chambers are called atria. The two lower chambers are called ventricles. A natural electrical … electrical activity. Find the cause of unexplained chest pain or pressure. This could be caused by a heart attack, … The tracing looks normal. Abnormal: The heart beats too slowly (such as less than 60 beats per minute). The heart …
Medical tests
… measure pressure in the eye). To look at structures in the back of the eye, such as the optic nerve or retina. To help … a paper strip that is gently touched to the inside of your lower eyelid. The dye dissolves in your tears, coats your … takes about 5 to 10 minutes. How It Feels It is usually not painful to have a slit lamp test. The dilating drops may …
Medical tests
… its inner fluid chambers (ventricles). Cerebrospinal fluid flows through these chambers. This test is most commonly done … care unit (NICU). Your baby will lie on his or her back. A device called a transducer is moved across the soft … 15 to 30 minutes. How It Feels This test doesn't cause any pain or discomfort for your baby. Risks There are no known …
Medical tests
… taken from a vein or in a sample of urine. Normally, only low levels of amylase are found in the blood or urine. But … or pinch. Urine test This test usually doesn't cause any pain or discomfort. Risks Blood test There is very little … taken from a vein or in a sample of urine. Normally, only low levels of amylase are found in the blood or urine. But …
Medical tests
… or pinch. Urine test This test usually doesn't cause any pain or discomfort. Risks Blood test There is very little … An overactive parathyroid gland (hyperparathyroidism). Low chloride levels may be caused by: Conditions that cause … An overactive parathyroid gland (hyperparathyroidism). Low chloride levels may be caused by: Conditions that cause …
Medical tests
… of structures more clearly. The dye may help show blood flow, look for some types of tumours, and show areas of … snapping noises. You may be given earplugs or headphones to reduce the noise. You will be asked to hold still during the … can take as long as 2 hours. How It Feels You won't have pain from the magnetic field or radio waves used for the MRI …
