329 results found
Medical tests
… veins. An angiogram is done for many reasons. For example, you may have this test to find the source of bleeding, such … arterial disease ) in people who have severe leg pain when walking. Check how bad atherosclerosis is in the … doctor if you have hay fever , asthma, or iodine allergy or food allergies. There is a small chance that the catheter …
Medical tests
… of folate and folic acid in the diet. Folate is found in foods such as liver; citrus fruits; dark green, leafy … The amount of folate in red blood cells measures the level when the cell was made, as much as 4 months earlier. This … usually affected by the amount of folate and folic acid in your diet each day. Folate deficiency can result in a type …
Medical tests
… the level of calcium in the blood is carefully controlled. When blood calcium levels get low ( hypocalcemia ), the … of calcium in the body depends on the amount of: Calcium you get in your food. Calcium and vitamin D your intestines absorb. …
Medical tests
… the neck that carry blood to the brain. The test may help your doctor decide if a procedure is needed to open a … to watch the movement of the catheter in the blood vessels. When the catheter is in place, the dye is injected through … doctor if you have hay fever, asthma, or iodine allergy or food allergies. There is a small chance that the catheter …
Medical tests
… produced by cells, called G cells, in the stomach lining. When food enters the stomach, G cells trigger the release of … chew gum or smoke cigarettes for 4 hours before the test. You can drink as much water as you want up to 1 hour before …
Medical tests
… (EKG or ECG) records the electrical activity of your heart while you do your usual activities. Ambulatory … heartbeats that occur during these activities. Many people have irregular heartbeats ( arrhythmias ) from time to time. … symptoms started. For example, write down the exact times when you: Exercise or climb stairs. Eat. Urinate or have a …
Medical tests
… difficile (C. diff) are bacteria that live in your large intestine, or colon, all the time. They usually … But sometimes, something causes the bacteria to grow. When there are too many of them, they release harmful … infection is most common in people who take antibiotics or have taken them recently. Antibiotics are drugs used to kill …
Medical tests
… Test Overview A swallowing study is a test that shows what your throat and esophagus do while you swallow. The test … X-rays in real time (fluoroscopy) and records what happens when you swallow. While you swallow, the doctor and speech … with a substance called barium. Or you might swallow solid foods coated with barium. The barium shows the movements of …
Medical tests
… deliver the substance in a fine mist (aerosol). Spirometry readings are taken to look at lung function before, during, … that doesn't restrict your breathing in any way. Avoid food or drinks with caffeine. Caffeine can cause your … expiratory flow (PEF) How much air you can quickly exhale when you try your hardest. Lower Maximum voluntary …
Medical tests
… D test measures the amount of vitamin D in the blood. Your body needs vitamin D to absorb calcium . Calcium keeps … sunshine to make its own vitamin D. Vitamin D is found in foods such as egg yolks, liver, and saltwater fish. It is … to take a blood sample, usually from the arm. How It Feels When a blood sample is taken, you may feel nothing at all …
