30 y F presents with a 3-day history of polydipsia and polyuria. Blood glucose is 650 mg/dl, bicarb is 21, pH is 7.35. What is the diagnosis?
a) Type 1 diabetes mellitus
b) Type 2 diabetes mellitus
c) Diabetic ketoacidosis (DKA)
d) Hyperosmolar hyperglycemic nonketotic syndrome (HHNS)
