Please bear with me here. This is likely a stupid question, but it's crucial for me to understand this.
Before a couple weeks ago I had never heard of Insulin to Carb Ratio (I:C, ICR) or Insulin Sensitivity Factor (ISF). I understand how to calculate both of them. What I don't understand is exactly how to total things up. I need to be able to explain this accurately to patients, so I have a couple questions.
To calculate both the ICR and ISF, you need to total up the daily amount of insulin. For example (just making up numbers), a patient is prescribed 20 U of Levemir daily and 10 U of novolog at each meal. Total = 50 U of insulin a day. For the ICR (500) it would be 10 and the ISF (1500) would be 30.
Using the same example patient, their dinner totals up to be 60 CHO. Their pre-meal BG is 190 and their target is 100. To cover the CHO, they would take 6 U and for the correction it would be 3 U. So 6 + 3 = 9. Is that all they take? Or do they add the 10 U to the 9 and end up taking 19 U of novolog for that meal?
Hopefully this makes some sense. I'm still learning and don't want to mess this up. I'm also afraid of looking like an idiot and asking a co-worker--bad thinking, I know, but at least I'm asking someone.