What do abnormal lab results mean? Congestion or runny nose. Headache. A positive PCR test does not yield any information about potential immunity. Your Spike Protein Antibody results will be reported as a reference range: >/= 0.80 U/mL: This is a positive result for anti-SARS CoV-2S. Testing for the virus Sample collection: A swab is taken from the inside of the nose or back of the throat. BMJ [Internet]. Analysis of clinical specimens to obtain information about the health of a patient. Contamination from a surface or a lab environment (very uncommon). Please do not contact the lab where your specimen was collected with questions about your test results. This occurs because the prevalence of the disease is higher among the population experiencing symptoms and higher for the population who have had a recent exposure to someone with the disease. The information on this site should not be used as a substitute for professional medical care or advice. Unfortunately, because of the lower sensitivity of the LFD, a second, negative, result would only reduce the likelihood of disease to around 19%, not considered enough to allow schooling to resume. Yes. But remember: "Each test has its own rules," says Dr. Salamon. Reference ranges are based on the normal test results of a large group of healthy people. A false negative result means your test shows you don't have a disease or condition, but you actually do. Opinion: How did COVID-19 start? One number could help reveal how infectious a COVID-19 - Science But if the prevalence is low, even a highly accurate test in the sense of delivering low false positive and false negative rates can be misleading. The false positive may just mean your body. Finally, I note that this discussion pertains to the use of tests for screening of asymptomatic individuals, rather than for patients experiencing symptoms, or for contact tracing where there is good reason to expect that an individual has been exposed to the virus.
