A primary healthcare provider prescribes 2 mg/kg of pyrimethamine to a child with severe drooling. A nurse finds that the child weighs 44 lbs. Upon seeing the drug label, the nurse finds that 5 mL of medication contains 1 mg of the drug.
What should the nurse do to provide safe medication to the child?
Administer 1 cup of medication to the child
Administer 1 tsp of medication to the child
Administer 0.8 mg of medication to the child
Administer 2 mL of medication to the child
The Correct Answer is D
This answer is correct because it is based on a series of unit conversions and calculations. The nurse should follow these steps to provide safe medication to the child:
1) Convert the child's weight from pounds to kilograms by dividing by 2.2, since there are 2.2 lbs in 1 kg. The child weighs 20 kg.
2) Multiply the prescribed dose per kilogram by the child's weight in kilograms to get the total dose in milligrams. The child needs 40 mg of pyrimethamine.
3) Use the ratio given on the drug label to convert the total dose in milligrams to the volume in milliliters. The nurse can set up a proportion as follows:
1 mg / 5 mL = 40 mg / x mL
Cross-multiplying and solving for x gives:
x = 200 mL
Therefore, the nurse should administer 200 mL of medication to deliver 40 mg of pyrimethamine to the child.
4) Convert the volume in milliliters to the volume in teaspoons by dividing by 5, since there are 5 mL in 1 tsp. The nurse should administer 40 tsp of medication to the child.
5) Convert the volume in teaspoons to the volume in cups by dividing by 48, since there are 48 tsp in 1 cup. The nurse should administer 0.83 cups of medication to the child.
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Related Questions
Correct Answer is A
Explanation
The amount of ampicillin in one dose is 390 mg.
This answer is correct because it is based on a series of multiplication and division calculations. The nurse should follow these steps to determine the amount of ampicillin in one dose:
1) Multiply the prescribed dose per kilogram per day by the child's weight in kilograms to get the total dose per day in milligrams, as follows:
150 mg/kg/day x 10.4 kg = 1560 mg/day
Therefore, the child needs 1560 mg of ampicillin per day.
2) Divide the total dose per day by the number of doses per day to get the amount of each dose in milligrams, as follows:
1560 mg/day / 4 doses/day = 390 mg/dose
Therefore, the amount of ampicillin in one dose is 390 mg.
Correct Answer is D
Explanation
One tablespoon is equal to **14.7867648 milliliters**¹²³⁴. To convert tablespoons to milliliters, you can multiply the value in tablespoons by 14.7867648. For example, 1 tablespoon x 14.7867648 milliliters = 14.7867648 milliliters.
Therefore, to convert 1 tablespoon of mouthwash to milliliters, you can multiply 1 by 14.7867648. The answer is **14.7867648 milliliters**. This is the amount of mouthwash that a patient uses in 1 tablespoon.
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