Testing for COVID-19 | COVID-19 | CDC - Centers for Disease Control and . . . A single NAAT test can be used to confirm an antigen test result *Self-tests, or at-home tests, are antigen tests that can be taken anywhere without having to go to a specific testing site Read self-test package inserts thoroughly and follow the instructions closely when performing the test When you get tested
Overview of Testing for SARS-CoV-2 | COVID-19 | CDC Positive viral test results indicate current infection and the person with COVID-19 should take steps to prevent spreading COVID-19 to others Negative viral test results mean the test did not detect the virus, but this doesn't rule out that the person could have an infection These results represent a snapshot of the time around specimen
Fit Testing | Personal Protective Equipment | CDC The test is a pass fail test that determines whether you can detect a test agent, such as through taste, smell, or an involuntary cough The OSHA-accepted fit test protocols provide complete instructions for conducting qualitative fit tests with the accepted test agents NIOSH does not endorse or recommend the use of the irritant smoke fit test
Laboratory Testing for Epstein-Barr Virus (EBV) Monospot test The Monospot test is not recommended for general use The antibodies detected by Monospot can be caused by conditions other than infectious mononucleosis Moreover, studies have shown that the Monospot produces both false positive and false negative results
About Newborn Screening | Newborn Screening | CDC - Centers for Disease . . . The blood sample is sent to a state laboratory to be tested for many severe disorders Although each state decides which disorders are included in the screening, the Secretary's Advisory Committee on Heritable Disorders in Newborns and Children (SACHDNC) recommends states test for a core panel of 31 congenital disorders
Laboratory Testing for Norovirus | Norovirus | CDC These assays can be used for preliminary identification of norovirus when testing multiple specimens during outbreaks However, samples that test negative should be confirmed by a second technique, such as RT-qPCR Thus, EIA kits should not replace RT-qPCR during outbreak investigations Genotyping
Screening for Breast Cancer | Breast Cancer | CDC - Centers for Disease . . . Other potential harms from breast cancer screening include pain during procedures and radiation exposure from the mammogram test itself While the amount of radiation in a mammogram is small, there may be risks with having repeated x-rays
Measles Serology Testing | Measles (Rubeola) | CDC Test turnaround-time for IgG avidity The turnaround–time for testing specimens for IgG avidity is 30 working days after the delivery of the specimens to the measles reference lab by the STATT laboratory Both an acute and a convalescent phase serum are recommended for PRN testing There is no established turnaround–time for measles PRN
Diagnosing von Willebrand Disease - CDC This test also measures the time it takes for blood to clot It measures primarily the clotting ability of factors I (1), II (2), V (5), VII (7), and X (10) If the level of any one of these factors is too low, it will take longer than normal for the blood to clot The results of this test will be normal among most people with VWD Fibrinogen test