How Quickly Does Positive Lateral Flow Show. Lateral flow tests can tell you quickly if you have Covid Picture. And if one appears a few minutes after 30 minutes - treat it as positive.
If you read it at 25 minutes then Id say it was negative. PCR tests are much better with a false negative rate of only 5. Usually a positive will show up long before the 25 minutes.
As soon as you suspect that you might have Covid-19 you must self isolate and take a lateral flow test.
Less sensitive lateral flow or rapid-antigen tests require a higher viral load to record a positive result which is why they often only identify people during their most infectious period. The lateral flow registered positive within about 30 seconds and then the control came up. As the diagram below shows upwards of 96 70007297 of people testing positive on LFTs at the moment will be true positives. It only took about five minutes to come up.
