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 A
Explanation
Choice A reason: The buccal route involves placing the medication directly in the mouth against the mucous membranes of the cheek, allowing for absorption through the oral tissues. This method is used for fentanyl administration to ensure rapid onset of pain relief without gastrointestinal involvement.
Choice B reason: Chewing the medication is not recommended for buccal administration as it can lead to unpredictable absorption and potential destruction of the medication's integrity, which can alter its effectiveness.
Choice C reason: Mixing fentanyl with food is not appropriate for buccal administration. This method is generally used for oral medications that are swallowed, not for those intended for mucosal absorption.
Choice D reason: Dissolving the tablet in liquid is also not suitable for buccal administration. The buccal route is designed for direct absorption through the cheek's mucous membranes, and dissolving the tablet would be more akin to oral administration, which is not the intended method for this medication.
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