Quote from silverhalide
I am confused a bit about insulin control/sliding scale. In clinical I had a pt. tonight who is Type 2 Diabetes, he is on a sliding scale of Novolog, BS check Q4. I got on the floor at 330, checked his BS at 4, it was 141. According to the sliding scale it said to give none. Now, he had dinner at around 530, then I checked it protocol Q4 at 800, so this would have been about 2.5 hours postprandial. It was 392! I told the nurse, she didn't seem concerned about it. Now his Novolog was only due 800, 1200 and 400 (according to the sliding scale) but shouldn't he have gotten insulin according to the sliding scale? Plus he was having snacks! I am confused.
My reply is based on patients I've taken care of, and being a diabetic.
My first question is why is he not on ac/hs accucheks
if he's not on TPN or continuous tube feeding? He won't get good coverage if the insulin isn't in sync with meals. The 4pm check is too far away from dinner to use that for the insulin dose- if dinner is at 5:30, you can have a VERY different bg, and the insulin will be wrong. The 8 a.m. accuchek may or may not be before breakfast. With the short acting insulins, you only have 5-15 minutes before the onset of action.
Second, some docs don't do a hs sliding scale
(I DO take NovoLog at hs if my sugar warrants it). If someone is on a long acting (Lantus or Levemir) they will have some underlying coverage for pretty close to 24 hours (some people only get 20 hours).
A blood sugar of 392 needs to be reported to the doc if there aren't orders to cover it- which isn't going to happen if the nurse blows it off. If the doc decides to not treat that, it's his problem for the moment...but it really isn't too swift to not aim for the best blood sugars possible
With NovoLog, the optimum dose is correlated to the number of carbs consumed. The insulin:carb ratio is very different for each patient, and takes some time of doing ac, pc, AND hs accucheks for a while, to see what doses work. Other medications, stress, the illness he's in the hospital for, etc all effect the I:C ratio. It's a hassle- but not difficult, and much better for tighter control. But if the patient doesn't know his/her I:C ratio, the doc just has to punt, but it should be tweaked if needed.
There have been studies that show better overall outcomes in hospitalized diabetics if their blood sugars are a bit high (not 392!). And no doc really wants to tell nurses that the dose is dependent on what the patient eats. That's why patients who can do their own calculations and can tell what dose they need can have near normal blood sugars. (of course, steroids screw everything up- and if he was on steroids, it still should be addressed, but could be a reason the nurse didn't get too excited- I still would have reported it- what the doc does is his deal).
When I'm in the hospital (various diagnoses) my first thing is to ask for orders to let me decide the dose. I've been doing this for years, and when someone else gets involved, it can take weeks to get things back in order. If I'm in for something that effects how much I can eat (chemo) I take the insulin immediately after the meal to avoid taking a dose for what I THINK I'm going to eat, only to get grossed out after the first 3 bites
Another issue....visitors bringing candy/junk. When everything else sounds horrible, sometimes a piece of candy helps- and the patient doesn't say anything- that can also be an issue for mystery spikes
I hope this helps
I don't mosey around all forums, but if I can be of help, please PM me - and ask the docs about the doses. It's ok for students to talk to the docs