Last week we had a heat wave in our province. On Monday morning my DD woke at 3am feeling nauseous. Put the fan on her - BG was in range. At 7am she vomited and we tested ketones. 0.4. By 9am ketones was 0.9. Bg still not very high - 8.6. I took her to her Endo and he did a blood test to see if she was in DKA. Came back negative. Gave clear juices with insulin and by 17h00 ketones were gone. She felt weak and sleepy for the next 36 hours and after that she was fine. Can there be a link between very high temperatures and ketones? This was all just so weird!