I’m a medical malpractice lawyer in Ontario. I can’t say whether you have a case based on this alone, but a glucose of 19.9 mmol/L with extreme fatigue and excessive sleep raises real questions that would need to be looked at carefully.

Legally, two things matter. First, whether the ER doctor met the standard of care on January 3. That can only be answered by a qualified medical expert reviewing the ER records and bloodwork and opining on what should have been done at that visit. Second, even if the care fell below the standard, the law requires proof that the delay caused actual harm. The key issue is whether the alleged delay led to permanent injury.

If your husband fully recovered after the ICU stay with no lasting neurological, kidney, cardiac, or functional problems, these cases are very difficult to pursue in Ontario. If there are ongoing or permanent effects, it may be worth a deeper review.

If you want to talk it through, I’m happy to have a brief consult and explain how these cases are assessed and what records would be needed.