How To Overlap Insulin

A favourite pop-up quiz during round – How to overlap Insulin? (in patient initially started with IVI insulin for DKA)

According to CPG Management of Type 2 DM

Use patient’s body weight, let’s say 60kg

60 kg x 0.5 = 30 unit
30 unit / 2 = 15 unit

15 units for prebed (long acting) insulin e.g. SC insulatard 15 units ON.
15 units daytime insulin (if divided as prebreakfast, prelunch, predinner, each time would be 5 units)

Therefore,
SC insulatard 15 unit ON
SC actrapid 5 unit TDS

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