My grandmother's new primary care physician does not believe she has diabetes. She was diagnosed with diabetes by a doctor in another state. She was taken off of diabetes medication due to concerns of kidney damage. Her nephrologist said her kidneys were fine a month or two ago. He requested blood work prior to her followup appointment. Her glucose levels were at 480. He thought it was strange that her primary care physician wasn't doing anything to control her glucose levels. He told her to contact her doctor immediately in regards to high blood glucose. This was on Monday. She had an appointment with her primary care physician on Tuesday anyways for an unrelated issue. She said she told her primary care physician about the blood work, but her doctor didn't take it seriously or did not believe her. This is where my sister intervened. She received a call from the nephrologist's office nurse with her concerns about the blood glucose. I guess she was just following up. My sister called the primary care physician and was told that there were no available appointments until May 10th. The office worker was rude and stated that she wasn't a doctor and did not know anything about diabetes. I guess the office worker got upset when my sister was trying to explain to her that a 480 reading is cause for concern. At this point, I got involved and checked her blood glucose levels. The meter was reading Hi, which indicates a reading of above 600. This was this afternoon. I called her primary care physician's office and explained what was happening. She didn't seem to care much and stated that there were no available appointments. It finally got her attention when I told her that the meter was reading above its maximum level. She then spoke with a physician and advised us to go to the emergency room immediately. My grandmother was admitted and had a 576 blood glucose reading. I was giving her water to hydrate her to try and lower it. I feel horrible that I didn't do more to understand exactly what range her blood glucose should be at. She has to stay overnight. They inserted an IV and are slowly bringing her blood glucose levels down. They also said she has some type of infection that could cause organ failure. I'm pretty upset with how her primary care physician handled the situation. She knew about the elevated levels on Tuesday. She could have prevented my grandmother from going to the ER. I don't know what exactly my question is. I'm just trying to figure out if I'm just overacting or was it our responsibility to do more than notify her doctor. I always just assumed that the doctor would recommend what steps should be taken. With a 480 level, should I have taken her to the ER on Monday?