Ketones
When we are too low, there is a simple remedy and protocol (carbs, and glucagon). But, when we are too high, there are two levels of seriousness. When we don’t have ketones in our bloodstream, we are at no risk to go into DKA. When we have ketones in our bloodstream, it means we are in ketosis, and that our body is burning fats, so we may be at risk to go into DKA, and our correction protocol becomes more stringent: it is more important to lower our BG fast, before we have any chance to drift into DKA, as well as hydrate vigorously to lower the concentration of ketones in our bloodstream.
So there are times when it is important to test for ketones.