Hi I am a nursing student in clinicals. Have a diabetic patient (long-standing diabetes mellitus and patient is over age 60, with many health problems from the diabetes ) whose non-fasting blood glucose was running 66-70, tests done about 3 hours after meals. The patient told me her levels usually run around 200. Her nurse was concerned about it being too low and had me give her a snack. The patient had reported dizziness and weakness which she attributed to the lower glucose reading.But when I talked to my instructor, she said that 60-100 was normal (I thought that was for fasting blood glucose) and there was no problem with the patient.Is it possible to have a high reading that is normal for you?Please help me out here with these levels thanks! Any other information I need to look at about the patient?