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  • 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
  • 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
  • Screening for Lung Cancer | Lung Cancer | CDC - Centers for Disease . . .
    A lung cancer screening test can suggest that a person has lung cancer when no cancer is present This is called a false-positive result False-positive results can lead to follow-up tests and surgeries that are not needed and may have risks A lung cancer screening test can find cases of cancer that may never have caused a problem for the patient
  • Clinical Testing and Diagnosis for Tuberculosis - CDC
    It is the only kind of TB skin test solution that is FDA-approved for this test method After 48–72 hours, the skin test reaction must be examined by a trained health care worker The health care worker measures any swelling where the tuberculin was injected to determine if the reaction to the test is positive or negative
  • 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
  • Clinical Testing and Diagnosis for Lyme Disease - CDC
    For more information, see: Updated CDC Recommendation for Serologic Diagnosis of Lyme Disease and APHL Guidance and Interpretation of Lyme Disease Serologic Test Results Key points to remember Most Lyme disease tests are serologic assays designed to detect antibodies that can take several weeks to develop following infection; patients may test
  • Infection Control Guidance: SARS-CoV-2 | COVID-19 | CDC
    If using an antigen test, a negative result should be confirmed by either a negative NAAT (molecular) or second negative antigen test taken 48 hours after the first negative test If a patient suspected of having SARS-CoV-2 infection is never tested, the decision to discontinue Transmission-Based Precautions can be made based on time from




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