preferred_name: Use mnemonics to assist in determining causes of metabolic acidosis (e.g., MUDPILES: Methanol ingestion, Uremia, Diabetic, alcoholic, or starvation ketoacidosis, Paraldehyde ingestion, Isoniazid or iron poisoning, Lactic acidosis, Ethylene glycol ingestion, Salicylate ingestion; HARDUP: Hyperalimentation, Acetazolamide, Renal tubular acidosis, renal insufficiency, Diarrhea and diuretics, Ureteroenterostomy, Pancreatic fistula)