What do my readings mean? May 29, 2023 10:06 Updated Further reading: What should my ketone reading be? Recommendations to maximize test accuracy Tips for Testing and Tracking Ketone Levels Related articles What should my ketone reading be? How to use the Ketodoc Meter Kit? (Video) Tips for Testing and Tracking Ketone Levels What does "899" (or other 3 digit code shown on start) mean? Recommendations to maximize test accuracy