Ok, I'm not going to write up answers to the whole darn case, but to me, if anyone is to be blamed for anything here, it's the physician who wrote the order. "u" is not an acceptable abbreviation for units for this very reason. If the ER nurse and floor nurse both read the order as "70," instead of "7u" then it obviously looked enough like 70 for both nurses to read it that way.
Yes, the floor nurse should have called the physician to clarify, but ultimately, the error began with the physician using an unacceptable abbreviation.
There were no adverse affects on the patient, so why has this become a lawsuit??? What damages are there to sue for if the patient was discharged home the next day with no untoward results from the higher dose of Lantus?
Actually, the higher dose probably did the patient more good than the smaller dose would have, considering her sugar continued to remain high several hours later....