A nurse is preparing to administer risperidone 1.5 mg PO every 12 hours to a patient who has schizophrenia. Available is risperidone solution1 mg/mL.
What is the total daily dose in mL the nurse should administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["3"]
Step 1: Calculate the total daily dose in mg
The prescribed dose is1.5 mg every 12 hours. Since there are 24 hours in a day, the total daily dose in mg is1.5 mg × 2 = 3 mg.
Step 2: Calculate the total daily dose in mL
The available risperidone solution is1 mg/mL. So, to find out the total daily dose in mL, we divide the total daily dose in mg by the concentration of the solution. That is,3 mg ÷ 1 mg/mL = 3 mL.
The total daily dose in mL the nurse should administer is 3 mL. This is rounded to the nearest whole number as per your instructions.
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Related Questions
Correct Answer is ["20"]
Explanation
-Step 1: Define the conversion factor from grams to milligrams. We know that 1 g = 1000 mg.
-Step 2: Multiply 0.02 g by the conversion factor (1000 mg/g). The calculation is 0.02 g × 1000 mg/g = 20 mg.
-Step 3: Round the result to the nearest whole number. The rounded result is 20 mg.
The nurse should administer 20 mg of aripiprazole.
Correct Answer is ["2"]
Explanation
Step 1: The dose to be administered is 18 mg of methylphenidate.
Step 2: The available methylphenidate oral solution has a concentration of10 mg/mL. This means that for every 1 mL of the solution, there are 10 mg of methylphenidate.
Step 3: To find out how many mL should be administered, we divide the dose by the concentration. So, 18 mg ÷ 10 mg/mL = 1.8 mL.
Step 4: Round the answer to the nearest whole number. So, 1.8 mL rounds to2 mL.
The nurse should administer 2 mL of methylphenidate oral solution.
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