5. Any contraindication to aggressive IVF hydration: evidence of clinical volume overload (peripheral or pulmonary edema), respiratory compromise (oxygen saturation < 90% on room air), chronic kidney disease (creatinine clearance < 40 mL/min), systolic congestive heart failure (ejection fraction < 45%), cirrhosis, and severe electrolyte disturbance with sodium <130 mEq/L or >150 mEq/L