NUR 1002 Dosage Assignment Exam with Answers Verified Correct

NUR 1002 Dosage Assignment Exam with Answers A client who has heart failure with paroxysmal atrial tachycardia is receiving digoxin (Lanoxin) 0.45 mg IV as the inital digitalizing dose. The pharmacy provides 0.25 mg/ml. How many ml should the nurse administer? (Enter numeric value only. If rounding is required, round to the nearest tenth.) Rationale Using the formula D/H x Q = 0.45 mg/0.25 mg x 1 mL = 1.8 ml Fill in the blank An adult client with myasthenia gravis is receiving pyridostigmine (Mestinon) 126 mg PO every 4 hours. The drug is available as 60 mg in 5 ml syrup. How many ml should the nurse administer? (If rounding is required, round to the nearest tenth.) Rationale Using the formula, Desired dose / dose on Hand x Quantity of volume on hand (D/H x Q) 126 mg / 60 mg x 5 ml = 10.5 ml Fill in the blank A client who is complaining of nausea and vomiting postoperatively receives a prescription for metoclopramide (Reglan) 10 mg IV. The medication is available in vials containing 5 mg/ml. How many ml should the nurse administer? (Enter numeric value only.) Rationale 10 mg : X ml = 5 mg : 1 ml 5X = 10 X = 2 ml Fill in the blank 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.) Rationale First convert the weight into kilograms: 183 pounds/2.2 kg = 83 kg Next calculate the number of mcg/kg/minute: 8 x 83 = 664 mcg/min Calculate the number of mcg/hour: 664 x 60 minutes = 39,840 mcg/hour Now 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 = 3,984,000 X = 39.84 (rounded to) 40 ml/hour Fill in the blank A client is receiving an IV solution of 2 grams of medication diluted in 100 ml of normal saline over a one hour time period. How many mg of medication is the client receiving per minute? (Enter numeric value only. If rounding is required, round to the nearest whole number.) Rationale 2 grams = 2000 mg 1 hour = 60 minutes 2000 mg/60 minutes = 33.333 mg/minute, rounded to 33 mg/minute Fill in the blank The nurse is preparing to administer vancomycin (Vancocin) 750 mg in 250 ml of Dextrose 5% in Water (D5W) over 75 minutes. The secondary infusion pump should be programmed to administer how many ml/hour? (Enter numeric value only. If rounding is required, round to the nearest whole number.) Rationale 250 ml of the antibiotic is to infuse over 75 minutes or 1.25 hours 250 ml divided by 1.25 hour equals = 200 ml/hour Fill in the blank A client with coronary artery disease receives a prescription for clopidogrel (Plavix) 300 mg PO. The medication is available in 75 mg tablets. How many tablets should the nurse administer? (Enter numeric value only.) Rationale Using the formula, Desired/Have: 300 mg/75 mg = 4 tablets Fill in the blank A client with multiple sclerosis and muscle spasms receives a prescription for baclofen (Kemstro) 30 mg PO daily. The medication is supplied from the pharmacy in 20 mg scored tablets. How many tablets should the nurse administer? (Enter numeric value only. If rounding is required, round to the nearest tenth.) Rationale Use ratio and proportion, 30 mg : X tablets = 20 mg : 1 tablet 20X = 30 X = 1.5 Fill in the blank A client with Parkinson’s disease is receiving benztropine (Cogentin) 3.5 mg PO twice daily. The medication is available in 0.5 mg tablets. How many tablets should the nurse administer for each dose? (Enter numeric value only.) Rationale Using D/H: 3.5 mg / 0.5 mg = 7 tablets Fill in the blank The healthcare provider prescribes thiamine HCL 0.03 grams IM TID for a client with beriberi. Thiamine 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.) Rationale 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 Fill in the blank The healthcare provider prescribes phytonadione (AquaMEPHYTON) 250 mcg IM to be administered to an infant within 1 hour of admission to the nursery. A 0.5 ml ampule labeled 2 mg in 1 ml is available. The nurse should administer how many ml? (Enter numeric value only. If rounding is required, round to the nearest hundredth.) Rationale Change mcg to mg, 1000 mcg = 1 mg Use ratio and proportion to calculate the dose: 2 mg : 1 ml :: 0.25 mg : X ml 2X = 0.25 mg X = 0.125 =0.13 ml Fill in the blank A client experiencing ventricular tachycardia receives a prescription a continuous infusion of dextrose 5% in water (D5W) 1000 ml with lidocaine (Xylocaine) 2 grams 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.) Rationale 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/hour Fill in the blank The healthcare provider prescribes furosemide (Lasix) 25 mg IV. The drug is available in a solution of 40 mg/4ml. How many ml should the nurse administer? (Enter numeric value only. If rounding is required, round to the nearest tenth.) Rationale Using the formula D/H x Q: 25 mg/40 mg x 4 ml = 2.5 ml Fill in the blank The healthcare provider prescribes propofol (Diprivan) at 8 mcg/kg/minute for a client during conscious sedation. The drug is dispensed as a econdary infusion labled, 0.9% normal saline 50 ml with propofol 100 mg/50 ml The client's weight is 198 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 tenth.) Rationale The client's weight in kg is 90 kg (198 pounds / 2.2 pounds). Next, determine the total mcg in the NS infusion (1 mg : 1000 mcg :: 100 mg : 100,000 mcg) and the IV concentration per ml (100,000 mcg : 50 ml :: X mcg : 1 ml). 100,000 / 50 = 2000 mcg/ml. Then, calculate the prescribed dose (mcg/kg/min) x 60 min/hour x kilograms divided by concentration (mcg/ml). 8 x 90 x 60 divided by 2000 = 21.6 ml/hour Fill in the blank Oxytocin (Pitocin) 4 milliunits/minute IV is prescribed for a client with an ineffective contraction pattern. To administer the prescribed dosage, the nurse adds 20 units of oxytocin to Ringer's Lactate 1,000 ml . The infusion pump should be set to deliver how many ml/hour. (Enter numeric value only.) Rationale 4 milliunits/min x 1 unit/1000 milliunits x 1000 ml/20 units x 60 min/hr = 240,000/20,000 = 12 ml/hour Fill in the blank The nurse programs an IV infusion pump of Ringer's Lactated 1,000 ml with oxytocin (Pitocin) 40 units to be delivered at 15 ml/hour. How many milliunits/minute is the client receiving? (Enter numeric value only, whole number.) Rationale Convert units to milliunits, 40 x 1,000 = 40,000 milliunits. Using D/H x Q = 15 ml/hour: X/40,000 milliunits x 1,000 ml = 15 ml/hour (60 minutes) X/40 =15/60 60X = 600 X = 10 Fill in the blank A child weighing 28.4 kg is in hypertensive crisis. The healthcare provider prescibes methyldopa (Aldomet) 40 mg/kg/day IV in 4 divided doses. The pharmacy provides a 50 mg/ml injection vial. How many ml should the nurse administer? (Enter numeric value only. If rounding is required, round to the nearest tenth.) Rationale First calculate the total mg dose/day: 40 mg x 28.4 kg = 1136 mg/day Next divide the total mg into the 4 dosages for the day: 1136 mg/4 doses = 284 mg/dose Using the Desired/Have formula: 284 mg/50mg x 1 ml = 5.68 ml/ dose, rounded to 5.7 ml. Fill in the blank The nurse needs to calculate a client's oral temperature of 99.2??? Fahrenheit to Celsius. What temperature in Celsius should the nurse document? (Enter numeric value only. Round to the nearest tenth.) Rationale Use the formula to convert Fahrenheit to Celsius, Fahrenheit temperature (99.2) minus 32 divided by 1.8 = 37.3 degrees Celsius. Fill in the blank A client with a Trichomonas vaginalis infection receives a prescription for metronidazole (Flagyl) 1 gram. The medication is available in 500 mg tablets. How many tablets should the nurse administer? (Enter numeric value only.) Rationale 1 gram = 1000 mg 1 tablet :: 500 mg = X tablets :: 1000 mg X = 1000/500 = 2 tablets Fill in the blank 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, using whole number.) Rationale Use the ratio of: 1000 ml : 8 hours :: X : 1 hour 1000/X :: 8/1 X = 125 ml/hour 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? p div font span bAmoxicillin 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? /b /span /font /div /p 20 ml. 4 ml. 100 ml. 10 ml. Rationale 500 : X :: 125 : 5