[Solved]: A 71-year-old patient, DM (she/her), has had diabetes…

A 71-year-old patient, DM (she/her), has had diabetes mellitus type 2 for the past 10 years. She is prescribed metformin, glyburide, and Humulin R sliding scale as needed. She weighs 100kg. She is struggling financially and cannot afford her medications, so she has not taken them for 3 weeks. She also stopped monitoring her glucose levels daily.One morning, her daughter finds her on the floor moaning with a loss of bladder control. When the patient arrived at the ER, her vital signs were T 37.3C, HR 98, RR 24, BP 110/50, 02 Sat 94% on room air, and her blood work is as follows:Sodium 150 mEg/L (135-145)Potassium 4.5 mEq/L (3.5-5.0)Glucose 67 mmol/L pH: 7.3 (7.35-7.45)pC02 30mm Hg (35-45)HC03 20mEq/L (22-26)Urine Ketones-negativeSerum osmolality 320 mol/L (275-295)Based on the assessment and lab data, what does the nurse most likely suspect?