171 results found
Medical tests
… makes it hard to see the results of skin testing. Cannot stop taking a medicine, such as an antihistamine or … doctor about all the medicines you take. You may need to stop taking some medicines such as antihistamines for a few … site. Results Allergy skin tests Allergy skin tests Normal (negative): No raised red areas (called wheals) are created …
Medical tests
… of infectious mononucleosis and a rapid mono test result is negative. EBV antibody testing may also be done to check for … are usually ready within 1 hour. Rapid mono test Normal (negative): The blood sample does not form clumps (no … usually reported as positive (antibodies are present) or negative (antibodies are not present). The EBV antibody test …
Medical tests
… the growth of germs. If no germs grow, the culture is negative. If germs that can cause infection grow, the … your doctor will tell you how soon before the test to stop eating and drinking. Follow the instructions exactly about when to stop eating and drinking. If you don't, your surgery may be …
Medical tests
… to open and close your hand a few times. The pressure will stop the blood flow to your hand, and your hand will become … enough to supply blood to your hand and fingers. Abnormal (negative) Your hand remains pale and cold. This means that … to open and close your hand a few times. The pressure will stop the blood flow to your hand, and your hand will become …
Medical tests
… C virus (HCV) testing that show no infection are called negative. This means that no antibodies against HCV and no … ready in 5 to 7 days. Hepatitis C virus tests Normal (negative): No hepatitis C antibodies are found. No hepatitis … can take weeks to develop. So your results may be negative even though you are in the early stage of an …
Medical tests
… chance your baby has a birth defect. If the result is "negative," or normal, it means that your baby probably … If your result is 1 out of 300, this means that you have a negative result and your baby has a lower chance of a birth … test result are actually carrying a healthy baby. Sometimes negative test results can be wrong too. They may show that …
Medical tests
… that your baby has a higher chance of a birth defect. A negative result means that your baby probably doesn't have … If your result is 1 out of 300, this means that you have a negative result and your baby has a lower chance of a birth … your choice whether to have another test. If you have a negative result, you may choose not to have any more tests. …
Medical tests
… is usually repeated to confirm the diagnosis. If ELISA is negative, other tests usually aren't needed. This test has a … Genetic material may be found even if other tests are negative for the virus. The PCR test is very useful to find … were found in your blood. Normal results are called negative. You may need a repeat test to be sure the results …
Medical tests
… No nitrite is found in the urine. Normal results are called negative. Leukocyte test strip: No white blood cells … are found in the urine. Normal results are called negative. Abnormal: Nitrite test strip: Nitrite is found in … your urine, call your doctor even if the test results are negative. Sometimes other tests are needed. Related …
Medical tests
… exposed to the virus. In these cases, test results may be negative early in the course of the infection. This is called a false-negative test result . Another blood sample may need to be … (results that don't show a viral infection are called negative): Antibody test: No antibodies to the virus are …
