Procainamide is a class Ia antiarrhythmic drug that alters the conduction in normal and ischemic cardiac tissues by sodium-channel blockade. After administration of a single oral dose of 600 mg procainamide to a patient the observed AUC was 15 mg-hr/L. What is the total body clearance of procainamide in this patient if the bioavailability of oral procainamide is 88% ?