Sorry but this is by no means always true. Ketones or rather ketoacidosis can become dangerous in hours rather than days especially if blood sugar is already very high like in this case. Diabetic ketoacidosis can progress very rapidly into a life threatening condition.
Various methods for correcting ketones are taught so use whatever method you are comfortable with. But you will definitely need more than your normal correction dose.
This is totally understandable and I've been there, I've done it myself. But I just want to stress that it is dangerous not to test for ketones when you have high BG and feel **** (exactly the sort of time when you really don't feel like finding the test kit). It's quite possible to have ketones high enough that your normal correction dose will have no effect on your BG. In this case it's imperative to switch to a more aggressive insulin therapy, such as the DAFNE Sick Day Rules. Otherwise the condition can escalate, with both BG and ketones rising.
Yes do take it easy, and don't be tempted to overcorrect or correct too often, as long as your BG is continuing to head in the right direction, ie down! Sounds like you are going to be totally fine.
