329 results found
Medical tests
… plaque is done using a product that stains the plaque on your teeth. Dental plaque is a sticky film of bacteria that … with sugars and starches in foods to make acids and other substances that can cause problems and damage the teeth, gums, and bone. Acids can …
Medical tests
… difficile (C. diff) are bacteria that live in your large intestine, or colon, all the time. They usually don't cause problems. But sometimes, something causes the bacteria … grow. When there are too many of them, they release harmful substances called toxins. When the toxins are released, the …
Medical tests
… Overview A thyroid-stimulating hormone (TSH) blood test is used to check for thyroid gland problems. TSH is produced when the hypothalamus releases a substance called thyrotropin-releasing hormone (TRH). TRH … (T3) and thyroxine (T4). T3 and T4 help control your body's metabolism . Triiodothyronine (T3) and thyroxine …
Medical tests
… for colour, blood cell counts, protein, glucose, and other substances. Some of the sample may be put into a container … procedure. Why It Is Done A spinal tap is done to: Find a cause for symptoms possibly caused by an infection (such as … in the brain caused by too much CSF. How To Prepare Tell your doctor ALL the medicines and natural health products …
Medical tests
… Information Test Overview A genetic test checks the DNA of your cells. It can find changes in your genes or chromosomes that may cause a genetic illness. The results may tell you about your …
Medical tests
… (EKG or ECG) records the electrical activity of your heart while you do your usual activities. Ambulatory means that you are able to … whether they occur at the same time you have symptoms. Because arrhythmias can come and go, it may be hard to record …
Medical tests
… may be done. These tests look for possible problems with your baby. The tests may be called first-trimester … tests include: Blood tests. These measure the level of two substances in the blood called pregnancy-associated plasma … by the placenta . In some areas, other blood tests may be used. Nuchal translucency test. This test uses ultrasound to …
Medical tests
… Test Overview A radioactive iodine uptake (RAIU) test uses a radioactive tracer and a special probe to measure how … if the tracer is evenly spread in the gland. This helps your doctor know if the thyroid gland is working properly. … had a serious allergic reaction ( anaphylaxis ) from any substance, such as the venom from a bee sting or from eating …
Medical tests
… Test Overview A ketone test checks for ketones in your blood or urine. Ketones are substances that are made when the body breaks down fat for … body with sugar (glucose) for energy or if your body can't use blood sugar (glucose) properly. Ketones can be tested in …
Medical tests
… to find germs (such as bacteria or a fungus) that can cause an infection. A sample of stool is added to a substance that promotes the growth of germs. If no germs … This is called sensitivity testing. Depending on what your stool is being tested for, you may only need to collect …
