A study supported by the NIH found that routine lab tests may not be helpful in diagnosing long COVID. The study, part of the NIH RECOVER Initiative, highlights the challenges of diagnosing this condition with no validated biomarkers. Researchers recruited over 10,000 adults with and without prior SARS-CoV-2 infection, finding minimal differences in lab results between those with and without prior infection. The study also found modest increases in HbA1c in those with prior infection, which disappeared after excluding those with diabetes. Further research will use biobank samples to develop better tests for long COVID diagnosis.
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Routine lab tests are not a reliable way to diagnose long COVID, finds study
