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NUR 251/HESI Dosage Calculations

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HESI Dosage Calculations Exam, Hesi Pharmacology Review (Grade A+) QUESTIONS With COMPLETE ANSWERS 45. The healthcare provider prescribes thiamine HCL 0.03 grams IM tid for a client with beriberi. T ... hiamine is available for injection 100 mg/ml. The nurse should prepare to administer how many ml? (Enter numeric value only. If rounding is required, round to the nearest tenth.) 46. The healthcare provider prescribes a continuous infusion for a client experiencing ventricular tachycardia of dextrose 5% in water with 2 grams of lidocaine (Xylocaine) in 1000 ml at a rate of 4 mg per minute. 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.) 47. 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.) 48. A client with dehydration receives a prescription for an IV of lactated Ringer's 1,000 ml to be administered over 8 hours. The nurse should program the infusion pump to deliver how many ml/hour? (Enter numeric value only.) 45. Correct calculation Using the known conversion: 1 gram = 1000 mg as 0.03 gram = 30 mg Next, using the Desired / Have x 1 ml formula: 30 mg / 100 mg x 1 ml = 0.3 ml 46. Correct calculation First convert solution gram/ml to milligrams/ml: 2 gm/1000 ml = 2000 mg/1000 ml = 2 mg/ml Next calculate the number of mg/hour for the dose: 4 mg X 60 minutes = 240 mg/hour Next calculate the number of ml/hour needed to administer 240 mg/hour: 2000 mg: 1000 ml :: 240 mg : X ml 2000/240 = 1000/X X = 120 ml/hr 47. Correct calculation First using the known conversion 1 mg = 1000 micrograms Next, calculate the number of micrograms in solution: 1mg = 1000 mcg :: 2 mg = 2000 mcg Then calculate how many ml of solution contain 5 mcg dose/minute: 2000 mcg : 500ml :: 5 mcg : X ml 2000/5 :: 500/X X = 1.25 ml/minute Calculating ml/hour: 1.25 ml x 60 minutes = 75 ml/hour 48. Correct calculation Use the ratio of: 1000 ml : 8 hours :: X : 1 hour 1000/X :: 8/1 X = 125 ml/hour [Show More]

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