BSN 215 HESI Dosage Calculation Exam 3 (Latest Update ) Questions & Answers With Explanations – PharNmaigcohlotginy gI (aNlieghtCinogallleeCgoellege) 100 % CORRECT

1. A client who has been NPO for 3 days is receiving an infusion of Dextrose 5% in 0.45% Sodium chloride (D5½ NS) with potassium chloride (KCl) 20 mEq at 83 ml/hour. The client's 8-hour urine output is 400 ml, blood urea nitrogen (BUN) is 15 mg/dl (5.355 mmol/L), lungs are clear bilaterally, serum glucose is 110 mg/dl (6.1 mmol/L), and serum potassium is 3.7 mEq/L (3.7 mmol/L). Which action should the nurse implement? A) Increase the IV infusion rate B) Notify the healthcare provider of the potassium level C) Document in the medical record that these normal findings are expected outcomes D) Discontinue the IV infusion and restart at a new site Answer: C) Document in the medical record that these normal findings are expected outcomes *Explanation: All findings are within normal ranges: BUN 10 20 mg/dl, glucose 70 110 mg/dl, potassium 3.5 5.0 mEq/L, lungs clear, and urine output adequate. No intervention is required other than documentation.* ... 2. The nurse is preparing the change-of-shift report for a client who has a 265 ml secondary infusion that was started 2 hours ago at a rate of 85 ml/hour via an infusion pump. The nurse should report that how many ml remain to be infused by the on-coming nurse? A) 75 ml B) 85 ml C) 95 ml D) 105 mlmesAsages downloaded Answer: C) 95 ml *Explanation: Volume infused in 2 hours = 85 ml × 2 = 170 ml. Remaining = 265 ... 3. A child who is scheduled for a kidney transplant receives a prescription for basiliximab (Simulect) 20 mg IV 2 hours prior to surgery. The medication is available in a 20 mg vial that is reconstituted by adding 5 ml sterile water for injection, and administered as a secondary infusion of normal saline 50 ml to be infused over 30 minutes. The nurse should program the infusion pump to deliver how many ml/hour? A) 100 ml/hour B) 105 ml/hour C) 110 ml/hour D) 115 ml/hour Answer: C) 110 ml/hour *Explanation: After reconstitution, the vial contains 20 mg in 5 ml. This is added to 50 ml normal saline, total volume = 55 ml. Infusion time = 30 minutes = 0.5 hour. Rate = 55 ml ÷ 0.5 hour = 110 ml/hour.* ... 4. A client with Mycobacterium avium complex (MAC) is receiving an infusion of 5% dextrose in water (D5W) with amikacin (Amikin) 0.572 grams/100 ml every 12 hours. The nurse prepares the dose of amikacin using a vial labeled, "250 mg/ml." How many ml should the nurse add to the infusion? A) 1.8 ml B) 2.0 ml C) 2.3 mlmesAsages downloaded D) 2.5 ml Answer: C) 2.3 ml *Explanation: 0.572 grams = 572 mg. Concentration = 250 mg/ml. Volume = 572 ÷ 250 = 2.288, rounded to 2.3 ml.* ... 5. A client with septic shock receives a prescription for Dextrose 5% in Water (D5W) 250 ml with dopamine (Intropin) 0.6 grams/250 ml at a rate of 5 mcg/kg/minute. The client's weight is 148 pounds. The nurse should set the infusion pump to deliver how many ml/hour? A) 6 ml/hour B) 7 ml/hour C) 8 ml/hour D) 9 ml/hour Answer: C) 8 ml/hour *Explanation: Weight = 148 lb ÷ 2.2 = 67.27 kg. Dose = 5 mcg × 67.27 = 336.35 mcg/minute = 20,181 mcg/hour = 20.18 mg/hour. Concentration = 0.6 grams = 600 mg in 250 ml = 2.4 mg/ml. Rate = 20.18 ÷ 2.4 = 8.4, rounded to 8 ml/hour.*