329 results found
Medical tests
… (EKG or ECG) records the electrical activity of your heart while you do your usual activities. Ambulatory … symptoms started. For example, write down the exact times when you: Exercise or climb stairs. Eat. Urinate or have a … rhythms are found. Your heart rate may go up when you are active and go down when you sleep. It can be normal to have …
Medical tests
… test measures to see if you can stay awake during a time when you are normally awake. If your doctor thinks that you … helps your doctor learn what times during the day you are active and what times you are sleeping. Why It Is Done Sleep … problems, such as: Sleep apnea. Excessive snoring. Problems staying awake, such as narcolepsy . Problems with nighttime …
Medical tests
… levels at certain times of the day. It also allows you to quickly spot any major changes in your glucose levels. Some … sugar level at the time of testing. It is important to know when your blood sugar is high or low, to prevent emergency … of the test in a minute or less. How It Feels Your fingertips may get sore from frequent pricking for blood sugar …
Medical tests
… the skin to see the thyroid gland. This method is done when other tests have not found the cause of your symptoms. … examination or seen on a thyroid ultrasound test or a radioactive thyroid scan. How To Prepare You may have a needle or … to lie still with your head tipped backward. You may feel a quick sting or pinch in your neck. If you have an open …
Medical tests
… Information Test Overview A thyroid scan uses a radioactive tracer and a special camera to measure how much … or can be injected into a vein. It travels through your body, giving off radiation signals. The camera "sees" … given technetium in a vein ( intravenously ) in your arm. When and how you take the radioactive tracer depends on …
Medical tests
… to take a blood sample, usually from the arm. How It Feels When a blood sample is taken, you may feel nothing at all from the needle. Or you might feel a quick sting or pinch. Risks There is very little chance of … found. You may need more tests to find out if you have an active infection now or a past infection that got better. …
Medical tests
… bacteria. PCR testing may be used to identify a current (active) infection if you have symptoms of Lyme disease that … with the heart, brain, or nerves. Testing is most accurate when you have risk factors for Lyme disease or symptoms of … feel nothing at all from the needle. Or you might feel a quick sting or pinch. Risks There is very little chance of …
Medical tests
… Test Overview Using a home blood pressure monitor lets you keep track of your blood pressure at home. Blood … numbers. The first number shows how hard the blood pushes when the heart is pumping. This is the systolic pressure . … your health. Actionsets are designed to help people take an active role in managing a health condition. High Blood …
Medical tests
… (EMG) measures the electrical activity of muscles when they're at rest and when they're being used. Nerve … cause the muscles to react in ways that aren't normal. If you have leg pain or numbness, you may have these tests to … placed over the muscles controlled by that nerve. Several quick electrical pulses are given to the nerve. The time it …
Medical tests
… can cause blood to clump in blood vessels under the skin when the skin is exposed to the cold. This causes pale skin … the clumped blood cells can stop the flow of blood to the tips of the fingers, toes, ears, or nose. This is like … feel nothing at all from the needle. Or you might feel a quick sting or pinch. Risks There is very little chance of …
