I am new to the world of drug calculations. We have only practiced them using one drug, but today I encountered my first question involving multiple drugs. A patient has orders for IV 1000mL D5NS over 12 hours. The patient also has orders for Imipenem/cilastatin 500 mg every 6 hours IVPB. Both rates for the drugs would be 83mL/hr, but I would have to combine the two and she would get 166mL/hr, correct? The IV pump would be set at 166mL/hr? Or am I just overthinking it?