I'm fairly new to critical care nursing. I was wondering if anyone could help me out here. I had a patient admitted with dka. His heart rate was 150-160. Ekg showed a flutter. Dr ordered 150 bolus of amiodarone and to start a cardizem gtt 30 min after the amiodarone. It ended up working, pt converted to sinus rhythym. What is the reasoning he ordered it that way? I thought it was always one or the other. I tried researching it, but have found no answers. Thanks in advance.