1. A client experiencing ventricular dysrhythmias is admitted to the intensive care unit status post a myocardial infarction. The nurse should anticipate the healthcare provider to prescribe which medication? Diltiazem. Bretylium. Amiodarone. Adenosine.: Answer: Amiodarone Amiodarone is the drug of choice for acute ventricular dysrhythmias associated with myocardial infarction. 2. An older client is taking warfarin sodium (Coumadin) PO 2.5 mg twice a day. Which laboratory value should the nurse identify as a therapeutic response of the medication? INR of 2 to 3. PT of 4 seconds. PTT of 20 seconds. aPTT of 3 times normal.: Answer: INR of 2 to 3 Recommended INR ranges for clients on warfarin therapy is 2 to 3. Therapeutic anticoagulation using Coumadin should prolong the prothrombin time (PT) by 1.5 to 2 times the control value (a normal value is 10-20 seconds) 3. A pediatric client diagnosed with partial seizures receives a prescription for topiramate. Which information should the nurse provide to the child's parents?