Patient population includes post-cardiac cath patients, positive troponins, AFib with RVR, acute CHF, critically low potassium, sodium, or magnesium levels, sepsis, symptomatic bradycardia or tachycardia, second- or third-degree heart blocks, pacemaker insertions, chest pain, first-run dialysis patients (not chronic renal failure), malfunctioning AICDs, NSTEMI, and post-STEMI patients transferring from ICU. IV drips include nitro (up to 20 mcg), heparin, Amio (able to initiate and decrease from 33 ml/hr to 17 ml/hr after 6 hours), Cardizem, dopamine (no titration), and dobutamine (no titration).