Uncategorized When is the Best Time to Get Tested for the Flu? The Reason for the 12-to-48-Hour Window
If you suspect you have the flu, rushing to the hospital immediately is often not the best move! The "12 to 48 hours (especially 12 to 24 hours) after the onset of fever" is the Golden Time for receiving an examination and test. This is when the rapid influenza test (rapid antigen test) achieves its highest accuracy, and when anti-influenza medications can exert their maximum effect.We will explain why going immediately after the fever starts can lead to a "false negative" result, and provide the latest guidelines for the 2024-2025 season, including what to do if more than 48 hours have passed. The general rule of thumb is: "Wait half a day to a full day after the fever starts, and go to the hospital before a full 24 hours has passed."