Craig is one of our moderators!

And also the Meter Man...

Any time someone introduces faster acting insulin (R), I recommend starting small, which is easier to do in large doses than it is in small ones.

I see she was on 6.5 units. So I might start by replacing 1 unit of N with a unit of R. That would be the equivalent of 15% R and 85% N.

So just to be clear, you don't ADD the R. You replace the N with the R.

So if she's on 6.5 units of N, you would give 1.0 units of R and 5.5 units of N.

You could go with less than 1 unit... the measuring is challenging though and I think I would start with 1 full unit for ease and consistency of the amount and see how that goes.

Here are some instructions for drawing up the two insulins in one syringe:

YouTube Video

https://www.youtube.com/watch?v=gizYDn2_0Io
PDF

This is a full brochure by BD, looks like a good set of instructions.

https://www.google.com/?gws_rd=ssl#q...in+one+syringe
http://www.google.com/url?sa=t&rct=j...on7bYjYOU7SYIg
Brief website

http://nurseslabs.com/how-to-mix-ins...n-one-syringe/
This is an interesting Insulin Administration guide that talks about which insulins can be mixed.

http://www.empr.com/insulin-administ...rticle/123646/