ATI RN D osage Calcula tion 2024 Exam/ RN ATI 2024 Dosage Calculation Exam New Latest Best Studying Materi al Question 1: Fosamax (alendronate sodium) 60 mg by mouth is ordered. Fosamax 70 mg/75 mL is available. How many milliliters should the nurse administer to the patient? Round to the nearest whole number. A. 56 mL B. 64 mL C. 65 mL D. 88 mL Show correct answer and explanation Explanation The correct answer is choice B, 64 mL. To determine the amount of Fosamax the nurse should administer, we use the formula: (dose ordered ÷ dose available) x volume available. Substituting the given values, we get: (60 ÷ 70) x 75 = 64.28 mL, rounded to 64 m L. Question 2: A client diagnosed with tuberculosis is prescribed rifampin, 4 mg/kg. 8 hourly for 6 days. The client weighs 43 kg. How many 100 mg bottles of rifampin will be required for this client? Round your answer to the nearest whole number. A. 21 B. 31 C. 52 D. 62 Show correct answer and explanation Explanation The correct answer is choice B. 31. To find the number of bottles required, use the formula: (dose x frequency x duration) / (bottle size x bottle concentration). In this case, (4 mg/kg x 43 kg x 3 times/day x 6 days) / (100 mg/bottle) = 30.96 bottles. Rou nd up to the nearest whole number to get 31 bottles. Question 3: A client is prescribed a course of 600 mg/day of ciprofloxacin for 1 week to treat a throat infection. Each bottle contains 7 tablets that are 300 mg. How many bottles would be required for the client's prescribed course of treatment throughout the week? A. 1 bottle B. 2 bottles C. 3 bottles D. 4 bottles Show correct answer and explanation Explanation The correct answer is choice B. 2 bottles. To find the number of bottles required, use the formula: (dose x duration) / (bottle size x tablet strength). In this case, (600 mg/day x 7 days) / (7 tablets/bottle x 300 mg/tablet) = 2 bottles. Question 4: A primary healthcare provider prescribes 15 g/day niacinamide to a client. Upon seeing the medication bottle, a nurse finds each tablet has a score mark. What should the nurse do while administering this medication? A. The nurse should give one tablet of medication daily. B. The nurse should give two tablets of medication thrice daily. C. The nurse should give half a tablet of medication to the client daily. D. The nurse should give four tablets of medication to the client every eight hours. Show correct answer and explanation Explanation The nurse should give two tablets of medication thrice daily. To find the number of tablets to administer, use the formula: (dose / tablet strength). In this case, (15 g/day / 0.5 g/tablet) = 30 tablets/day. Divide by three to get the number of tablets per dose: = 10 tablets/dose. Each tablet has a score mark, which means it can be split in half. Therefore, the nurse should give two tablets (or four halves) of medication thrice daily. Niacinamide is a form of vitamin B3 that is essential for many cellular functions and energy production. Niacinamide can be used to treat niacin deficiency, which can cause pellagra, a condition characterized by skin lesions, diarrhea, and mental confusion. Niacinamide may also have anti -inflammatory and antioxidant effects and may benefit skin health and neurological function.. Question 5: Robitussin DM contains 100 mg of guaifenesin per 1 teaspoon. How many milligrams of guaifenesin are in 10 mL? A. 200 mg B. 100 mg C. 75 mg D. 50 mg Show correct answer and explanation Explanation
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