NU371 HESI CASE STUDY: DOSAGE CALCULATIONS EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED GRADED A+

NU371 HESI CASE STUDY: DOSAGE CALCULATIONS EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED GRADED A+ Terms in this set (28) A client returning from surgery has a prescription for an IV of 0.9% sodium chloride to be infused at 250 ml over 3 hours. The nurse should program the infusion pump to deliver how many ml/hour? (Enter numeric value only. If rounding is required, round to the nearest whole number.) 250 ml : 3 hours :: X : 1 hour 250/X :: 3/1 250: 3X X = 83 ml/hour A client with acute decompensated heart failure (HF) is to receive an IV infusion of 0.9% normal saline with inamrinone (Inocor) 0.1 grams/100 ml at a rate of 8 mcg/kg/minute. The client' s current weight is 183 lbs. The nurse should program the infusion pump to deliver how many ml/hour? (Enter numeric value only. If rounding is required, round to the nearest whole number.) First convert the weight into kilograms: 183 pounds/2.2 kg = 83 kgNext calculate the number of mcg/kg/minute: 8 x 83 = 664 mcg/minCalculate the number of mcg/hour: 664 x 60 minutes = 39,840 mcg/hourNow calculate the number of ml/hour needed to administer 39,840 mcg/hour:100,000 mcg : 250 ml :: 39,840 mcg : X = 100,000/39,840 :: 250/X and 100,000X = 3,984,000X = 39.84 (rounded to) 40 ml/hour A client admitted to the unit from the emergency room receives a prescription for an IV infusion of 0.9% sodium chloride 1,000 ml at 750 ml/4 hours. The IV administration set delivers 60 gtts/ml. The nurse should regulate the infusion to deliver how many gtts/minute? (Enter numeric value only. If rounding is required, round to the nearest whole number.) First convert hours to minutes: 4 hours x 60 = 240 minutes Using formula Volume/Time x gtt factor: 750 ml/240 min = 3.125 x 60gtts = 187.5 (rounding to) 188 gtts/minute Amoxicillin 500 mg PO every 8 hours is prescribed for a client with an infection. The drug is available in a suspension of 125 mg/5ml. How many ml should the nurse administer with each dose? 20 ml. 500 : X :: 125 : 5 125X = 2,500 X = 20 ml The healthcare provider prescribes an infusion of Dextrose 5% in Water (D5W) with sodium nitoprusside (Nitropress) 100 mg/250 ml at a rate of 4 mcg/kg/minute for a client in hypertensive crisis. The client's current weight is 130 pounds. The nurse should program the infusion pump to deliver how many ml/hour? (Enter numeric value only. If rounding is required, round to the nearest whole number.) First convert the weight into kilograms: 130 pounds/2.2 kg = 59 kgNext calculate the number of mcg/kg/minute: 4 x 59 = 236 mcg/minuteCalculate the number of mcg/hour: 236 x 60 minutes = 14,160 mcg/hourNow calculate the number of ml/hour needed to administer 14,160 mcg/hour: 100,000 mcg : 250 ml :: 14,160 mcg : X100,000/14,160 :: 250/X100,000X = 3,540,000X = 35.4 (rounded to) 35 ml/hour The healthcare provider prescribes a continuous infusion of dextrose 5% in water with isoproterenol (Isuprel) 2 mg in 500 ml at a rate of 5 mcg/minute for a client with cardiac arrhythmia. The nurse should program the infusion pump to deliver how many ml/hour? (Enter numeric value only. If rounding is required, round to the nearest hundredth.) First using the known conversion 1 mg = 1000 micrograms.Next, calculate the number of micrograms in solution: 1mg = 1000 mcg :: 2 mg = 2000 mcgThen calculate how many ml of solution contain 5 mcg dose/minute: 2000 mcg : 500ml :: 5 mcg : X ml2000/5 :: 500/XX = 1.25 ml/minuteCalculating ml/hour: 1.25 ml x 60 minutes = 75 ml/hour A client who weighs 65 kg is receiving an infusion of Dextrose 5% in Water (D5W) 250 ml with dopamine 400 mg at 12 ml/hour. How many mcg/kg/minute is the client receiving? (Enter numeric value only. If rounding is required, round to the nearest tenth.) Using the formula, mg/ml x 1000 ml x ml/hour / 60 / kg = mcg/kg/minute400/250 x 1000 x 12 / 60 / 65 = 4.9 mcg/kg/minuteThe solution on hand is 1.6 mg/ml x 12 hours = 19.2 mg19.2 mg x 1000 mcg = 19,200 mcg / 65 kg = 295.38 / 60 minutes = 4.92 = 4.9 Mineral oil U.S.P 30 ml PO daily for 3 days is prescribed for a client who is experiencing severe constipation. The dose cup is marked in tablespoons. How many tablespoons should the nurse administer? (Enter numeric value only.) 15 ml equals 1 Tablespoon. Use the ratio equation: 15 ml : 1 Tbs :: 30 ml : X 15 / 30 :: 1 / X 15X = 30 X = 2 Tablespoons A 9-month-old infant receives a prescription for digoxin 40 mcg PO daily. Digoxin Oral Solution, USP 50 mcg (0.05 mg) per ml is available. How many ml should the nurse administer? (Enter the numerical value only. If rounding is required, round to the nearest tenth.) Using ratio and proportion, 40 mcg : X ml :: 50 mcg : 1 ml = 0.8 ml