329 results found
Medical tests
… the level of calcium in the blood is carefully controlled. When blood calcium levels get low ( hypocalcemia ), the … release calcium to bring it back to a good blood level. When blood calcium levels get high ( hypercalcemia ), the … to take a blood sample, usually from the arm. How It Feels When a blood sample is taken, you may feel nothing at all …
Medical tests
… looks like. It also shows how well the eardrum moves when the pressure inside the ear canal changes. It helps the … in the middle ear can be seen. The eardrum moves slightly when a puff of air is blown into the ear. Abnormal: … surface of the drum. The eardrum does not move as it should when a puff of air is blown into the ear. Related …
Medical tests
… of the fluid buildup at the back of the baby's neck. When the test is done, the gel is wiped off your skin. You … bladder. For an abdominal ultrasound, the gel may feel cool when it is first put on your belly. You'll feel a light … For a transvaginal ultrasound, you may feel some pressure when the transducer is in your vagina. Risks There are no …
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 … a watch. The device measures your movement during sleep and when you are awake. It helps your doctor learn what times … the air pressure in your throat so your airway is more open when you breathe in. When you're ready and the equipment is …
Medical tests
… recent infection, find out if an HIV infection is present when antibody test results were uncertain, and screen blood … important to tell your doctor how and where to contact you when your test results are ready. If your doctor has not … to take a blood sample, usually from the arm. How It Feels When a blood sample is taken, you may feel nothing at all …
Medical tests
… between the heart and other structures in the chest when the heart beats. Some diseases cause fluid to collect … few hours. How It Feels You will feel a brief stinging pain when the local anesthetic is injected. When the needle is inserted into the pericardial sac, you …
Medical tests
… the level of calcium in the blood is carefully controlled. When blood calcium levels get low ( hypocalcemia ), the … release calcium to bring it back to a good blood level. When blood calcium levels get high ( hypercalcemia ), the … Urine test You start collecting your urine in the morning. When you first get up, empty your bladder but do not save …
Medical tests
… gonadotropin (hCG). This hormone is made by the placenta when a woman becomes pregnant. Estriol (uE3). This is a form … test result. This means that the test could show a problem when the baby doesn't have the problem. A false-positive … can be wrong too. They may show that the baby is fine when he or she does have a birth defect. (This is a …
Medical tests
… with the heart, brain, or nerves. Testing is most accurate when you have risk factors for Lyme disease or symptoms of … to take a blood sample, usually from the arm. How It Feels When a blood sample is taken, you may feel nothing at all … is very little chance of having a problem from this test. When a blood sample is taken, a small bruise may form at the …
Medical tests
… Feels You are likely to feel some mild discomfort or pain when the sores are rubbed to collect a sample for testing. When a blood sample is taken, you may feel nothing at all … is very little chance of having a problem from this test. When a blood sample is taken, a small bruise may form at the …
