Lancet Covid Test Results Not Detected. This means that the virus was not found in your sample. A negative result does not mean that youve never had COVID-19.
If the test is administered too soon after the infection there might not be detectable antibodies although if you are in week 3 of the illness an antibody test might be better than the RT-PCR test. For example a healthy persons test result would not detect COVID-19 so the reference range would be negative or not detected If your test result shows a value of positive or detected that falls outside of the reference range and would be considered abnormal or atypical. If you get this type of result you are advised to get tested again for a clear result.
Negative COVID-19 not detected indeterminate invalid or inhibitory.
Answer 1 of 11. Its possible that you had the virus but that. When low pretest probability exists positive results should be interpreted with caution and a second specimen tested for confirmation. For COVID-19 a negative or not detected test result for a sample collected while a person has symptoms usually means that COVID-19 did not cause your recent illness.