329 results found
Medical tests
… Test Overview A home lung function test uses a peak flow meter or a home spirometer to monitor and evaluate any breathing problems you may have on a day-to-day basis. A peak flow meter allows you to … as for asthma), talk to your doctor to learn how long you should wait to test your lung function after taking your …
Medical tests
… imaging (MRI) is a test done with a large machine that uses a magnetic field and pulses of radio wave energy to … problems. How To Prepare In general, there's nothing you have to do before this test, unless your doctor tells you … are present. The MRI may also show a thickening, meaning surgery or a tear you had in the past or repeated stress. …
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 … cholera , and typhoid . Identify a person who may not have any symptoms of disease but who carries bacteria that … Find out if treatment for an infection has worked as it should. How To Prepare Tell your doctor if you have recently …
Medical tests
… body. No instruments are inserted in the body. Doctors can use MRC to find gallstones before surgery to remove the gallbladder (laparoscopic … in the body. Doctors can use MRC to find gallstones before surgery to remove the gallbladder (laparoscopic …
Medical tests
… Results Test Overview Retinal imaging uses special cameras and scanners to make magnified images, … treatment is working. You may need retinal imaging if: You have diabetes or diabetic retinopathy . These conditions can … a better chance of protecting your vision. Retinal imaging should not take the place of a complete eye examination. How …
Medical tests
… Blood urea nitrogen (BUN) and creatinine tests can be used together to find the BUN-to-creatinine ratio … has a different range for what's normal. Your lab report should show the range that your lab uses for each test. The … and cause a low BUN value. Women and children may have lower BUN levels than men because of how their bodies …
Medical tests
… Check for a tumour in the adrenal glands. Find the cause of high blood pressure or low potassium levels. This is … has a different range for what's normal. Your lab report should show the range that your lab uses for each test. The … such as the types of kidney disease seen in people who also have diabetes. Heparin treatment. Heparin is a medicine that …
Medical tests
… hepatitis A virus test is a blood test that shows if you have a hepatitis A infection now or had it in the past. The … body to fight the virus. They will be in your blood if you have a hepatitis A infection now or have had one in the … doctor tells you to. How It Is Done A health professional uses a needle to take a blood sample, usually from the arm. …
Medical tests
… Hepatitis B tests are blood tests that show whether you have an active hepatitis B infection. The tests can also … of infection: Antigens , which are made by bacteria or viruses. Antibodies , which are made by the body to fight … the infection. Why It Is Done You may need testing if: You have symptoms of hepatitis. You may have been exposed to the …
Medical tests
… the blood level of BNP. Why It Is Done The BNP test is used to: Check to see if you have heart failure. A doctor may think that you have heart failure if you are having problems such as …
