Example: Ampicillin CL_T is 10 L/hr, and its renal clearance is 80% of the CL_T. Probenecid is given in combination with ampicillin to inhibit its renal elimination and to achieve higher plasma and tissue antibiotic conc in the treatment of Neisseria Gonorrhoeae. If probenecid decreases the renal clearance of ampicillin by 50% without affecting its nonrenal clearance, calculate ampicillin CL_T and fraction of dose excreted in urine when given with probenecid.