Dosage Calculations Examples / 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? Ans:- 2 tabs The physician orders Lasix 40 mg. The drug label reads Lasix 20 mg/ml. How many ml will you give? Ans:- 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? Ans:- 2 tabs You have 15mg/ml of Morphine Sulfate. The order is for 10 mg to be given. How much should be administered? Ans:- 0.67 mL The physician orders Gentamycin 60 mg IM. The drug label reads Gentamycin 40 mg/mL. How much will you give? Ans:- 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? Ans:- 0.5 mL The physician orders Digoxin 0.5 mg. The drug label reads Digoxin 0.25 mg per tab. What will you give? Ans:- 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? Ans:- 2 mL A child who weighs 55 lb. is to receive 0.05 mg of a drug per kg of body weight per dose. How much of the drug should the child receive for each dose? Ans:- 1.25 mg A child is taking 12 mL of a medication four times per day. If the full bottle contains 480 fluid ml of the medication, how many days will the bottle last? Ans:- 10 days The patient tells you he was weighed in the doctor's office and was told he is 206 lbs. What is his weight in kilograms? Ans:- 93.6 kg The standard dosage of Pepto-bismol for 9 - 12 year old children is 15 ml. How many full doses are available in a 120 mL bottle? Ans:- 8 doses The doctor ordered you to give your patient 500 ml of fluid over 4 hours. You are using a 15 drop set. What should the IV flow rate be set at? Ans:- 31.25 gtt/min Your patient is to receive 100 ml of Flagyl over 1 hour using a 60 drop set. What is the IV flow rate? Ans:- 100 gtt/min The physician orders 40 mg Depo-Medrol; 80 mg/mL is on hand. How many milliliters will you give? __________ Ans:- 0.5 mL The physician orders 750 mg Tagamet liquid; 1,500 mg/tsp is on hand. How many teaspoons will you give? __________ Ans:- 0.5 tsp The physician ordered 75 mg of Seconal; 50 mg/mL is on hand. How many milliliters will you give? __________ Ans:- 1.5 mL The physician ordered 1,500 mg Duricef; 1 g/tablet is on hand. How many tablets will you give? __________ Ans:- 1.5 tab The physician orders 15 mg morphine sulfate; 1 gr/mL is on hand. How many milliliters will you give? __________ Ans:- 0.25 mL The physician ordered 10 units of regular insulin; 100 units/mL is on hand. How many millimeters will you give? __________ Ans:- 0.1 mL The physician ordered 5 mg Coumadin; 5 mg/tablet is on hand. How many tablets will you give? __________ Ans:- 1 tab The physician ordered 20 mg Tylenol/kg of body weight; on hand is 80 mg/tablet. The child weighs 12 kg. How many tablets will you give? __________ Ans:- 3 tab The physician ordered 20 mg Tylenol/kg of body weight; on hand is 80 mg/tablet. The child weighs 44 lb. How many tablets will you give? __________ Ans:- 5 tab