I have started at a new facility. I am not a new nurse, just new to the facility. A patient had a very high blood sugar. I had never seen the BS this high for the patient. I rechecked it to make sure it was not a false high, but it went higher (not by much though) so I went with the higher number. This also required me to call the MD/notify charge nurse. When I told my preceptor what happened, she told me that I shouldn't have checked it again and should have went with the first number. I explained my rationale (that it could have been a false high and I would have been covering with an inaccurate number) and she told me that she had never done this before. She didn't think it made sense. I asked for the policy and she said "just forget the policy for now, what is your nursing rationale?" She said go with the MD order. I have always thought that a facility would have a policy on what to do with abnormal blood glucose, not just hypoglycemia. I was even given a funny look for giving apple juice instead of orange juice (due to severe CRI) when a BS was low. What do you think? What is the policy at your facility? what is best evidence based practice? Appreciate any response.