A client is brought to the emergency department (ED) by friends reporting a dry mouth, frequent urination, extreme thirst, and no fluid intake for the last 8 hours. The friends report the client may not have taken insulin during the last couple of days. The nurse reviews prescriptions from the health care provider. Which prescription does the nurse implement first? 1. Administer 20 mEq potassium chloride orally. 2. Begin regular insulin at 0.1 units/kg/hour. 3. Obtain a 12-lead electrocardiogram. 4. Begin infusion of 0.9 % NaCl at 1 L per hour. {Ans: Correct: 4 Rationale: During DKA, osmotic diuresis occurs and the client is at significant risk for fluid volume deficit. Since this deficit impacts the ABCs (specifically circulation), this is the priority prescription for the nurse to implement. 1: Mild to moderate hyperkalemia is often seen during the initial phase of DKA. Once an insulin drip is initiated, causing potassium to move into the cells, a KCl prescription may be appropriate. 2: does not address ABC's Restoring volume is the priority for this client 3: This does not address the client's actual problem}*The home care nurse instructs a client diagnosed with multiple sclerosis (MS). The client states, "I