329 results found
Medical tests
… your blood pressure. A renin test is often done at the same time as an aldosterone test. In some people, it may be … the cause of high blood pressure (hypertension), especially when potassium levels in the blood are low. How To Prepare … 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
… made mostly by your adrenal glands as a reaction to stress. When you feel stressed, these hormones increase heart rate, … must collect all the urine you produce in a 24-hour period. When you first get up in the morning, urinate into the … in the refrigerator. Empty your bladder for the last time at or just before the end of the 24-hour period. Add …
Medical tests
… the culture is positive. The type of germ may be identified using a microscope or chemical tests. Sometimes other tests are done to find the right medicine for … infection may include having a hard time breathing, pain when breathing, or a cough that produces bloody or greenish …
Medical tests
… the arm. Urine test You will need a clock that measures time in seconds. You will also need wipes or towelettes to … about 60 mL (2 fl oz) of this "midstream" urine without stopping the flow. Don't touch the rim of the container to … on the container. Wash your hands. How It Feels Blood test When a blood sample is taken, you may feel nothing at all …
Medical tests
… of a type of sugar, called glucose, in your blood at the time of testing. The test can be done at home or anywhere, using a small portable machine called a blood glucose meter. … sugar level at the time of testing. It is important to know when your blood sugar is high or low, to prevent emergency …
Medical tests
… life, so its levels in the blood are closely controlled. When cortisol levels rise, ACTH levels normally fall. When cortisol levels fall, ACTH levels normally rise. Both … abnormal. Cortisol levels are often measured at the same time as ACTH. ACTH is released in bursts, so its levels in …
Medical tests
… An abbreviated breast MRI is a newer test that takes less time than a standard MRI. (You might hear it called a "fast … is done to: Find breast cancer . Breast MRI may be done when a mammogram or breast ultrasound scan cannot tell if a … the test. But most reactions are mild and can be treated using medicine. If you breastfeed and are concerned about …
Medical tests
… on the day of the test. Plan to stay home during your prep time since you will need to use the toilet often. The colon … bread and granola. Follow your doctor's directions about when to stop eating solid foods and drink only clear … colonoscopy, you probably won't remember having the test when you wake up. Next, the doctor will insert a thin, …
Medical tests
… video screen. Several X-ray pictures are taken at different times and from different views. A small bowel follow-through … series of X-rays that follow. The radiologist will tell you when and how much to drink. By the end of the test, you may … watches the barium pass through your gastrointestinal tract using fluoroscopy and X-ray pictures. The table is tilted at …
Medical tests
… procedure Follow your doctor's instructions exactly about when to stop eating and drinking before the test. This may … that the probe is no thicker than many foods you swallow. When the probe is in your esophagus, it will be moved down … and swollen. Some people feel like they can't breathe at times because of the probe in their throat, but this is a …
