Nursing Dosage calculations #1 Exam Questions and Answers

A patient is to receive Valium 10 mg TID. The available tablets are labeled 5 mg. How many tabs will you give? - Answer- 5 mg: 1 tab = 10 mg: X tabs Means: 1 x 10 = 10 Extremes: 5 x "X" = 5X 5 X = 10 5 5 X = 2 tabs The physician orders Lasix 40 mg. The drug label reads Lasix 20 mg/ml. What will you give? - Answer- 20 mg: 1 mL = 40 mg: X mL Means: 1 x 40 = 40 Extremes: 20 x "X" = 20 X 20 X = 40 20 20 X= 2 (mL) The physician orders 5 mg of a drug to be given. You have 2.5 mg tabs available. How many tabs should you give? - Answer- 2 tabs You have 15mg/ml of Morphine Sulfate. The order is for 10 mg to be given. How much should be administered? - Answer- 0.67 mL The physician orders Gentamycin 60 mg IM. The drug label reads Gentamycin 40 mg/mL. How much will you give? - Answer- 1.5 mL The order is for Librium 25 mg IM. The drug label reads Librium 100 mg/2 mL. How much will you give? - Answer- 0.5 mL The physician orders Digoxin 0.5 mg. The drug label reads Digoxin 0.25 mg per tab. What will you give? - Answer- 2 tabs The order is for Pen-Vee K 250 mg. The drug label reads Pen-Vee K 125 mg/ml. How much will you give? - Answer- 2 mL The label for a granular medicine recommends mixing it with at least 120 mL of water or juice. At the time of discharge, the nurse should advise the patient to mix the medicine ____ fluid ounces or ____ cups of water or juice - Answer- 4 fluid ounces 0.5 (1/2 cup) A patient who weighs 250 lb. starts a weight loss program with a goal of losing 10 lb. before the next doctor's appointment. At the next office visit, the patient is weighed at 108 kg. Has the patient met the loss goal? How much weight did the client lose in pounds? - Answer- Yes 237.6 lbs. - lost 12.4 lbs.