266 results found
Medical tests
… flow (PEF) to measure the amount of air you can inhale and quickly exhale. This is tracked to see how well asthma is … hand-held device you breathe into as hard and as fast as you can. Read and follow the instructions included … redo the test. How It Feels Breathing in and out very quickly during these tests may make you feel light-headed or …
Medical tests
… There are several different types of blood glucose tests. Fasting blood sugar (FBS) measures blood glucose after you … may feel nothing at all from the needle, or you may feel a quick sting or pinch. Risks There is very little chance of … may feel nothing at all from the needle, or you may feel a quick sting or pinch. Risks There is very little chance of …
Medical tests
… adrenal gland. How To Prepare If your doctor tells you to fast before your test, do not eat or drink anything except … feel nothing at all from the needle. Or you might feel a quick sting or pinch. Risks There is very little chance 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
… Counting your pulse rate is a simple way to find out how fast your heart is beating. Your doctor will usually check … Your pulse changes from minute to minute. It will be faster when you exercise, have a fever, or are under stress. … that may be related to your symptoms and past health. Fast pulse A fast heart rate may be caused by: Activity or …
Medical tests
… causes high blood pressure, excessive sweating, headaches, fast heartbeats (palpitations), and tremors. Why It Is Done … Catecholamine levels in the blood can change quickly, so it may be hard to find high values in a single … 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
… A reticulocyte count is a blood test that measures how fast red blood cells called reticulocytes are made by the … may feel nothing at all from the needle, or you may feel a quick sting or pinch. Risks There is very little chance of a … may feel nothing at all from the needle, or you may feel a quick sting or pinch. Risks There is very little chance of a …
Medical tests
… the amount of alcohol (ethanol) in your body. Alcohol is quickly absorbed into the blood and can be measured within … feel nothing at all from the needle. Or you might feel a quick sting or pinch. Risks There is very little chance of … Other things that affect blood alcohol levels include: How fast you drink. As you increase the number of drinks per …
Medical tests
… extended. This position pushes the thyroid gland forward, making it easier to do the biopsy. Do not cough, talk, 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 … 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
… vitamin pills and fortified foods, such as fortified breakfast cereals. Folate can also be measured as the amount in … feel nothing at all from the needle. Or you might feel a quick sting or pinch. Risks There is very little chance of … kidney failure and some types of cancer, may use up folate quickly. They may need their blood to be cleaned using a …
Medical tests
… used. Nerve conduction studies measure how well and how fast the nerves can send electrical signals. Nerves control … placed over the muscles controlled by that nerve. Several quick electrical pulses are given to the nerve. The time it … tests. How It Feels During an EMG test, you may feel a quick, sharp pain when the needle electrode is put into a …
