A nurse is preparing to administer perphenazine 200 mg divided into four equal doses daily to a client who has psychosis. Available is perphenazine oral solution16 mg/mL. How many mL should the nurse administer per dose? Round the answer to the nearest tenth. (Use a leading zero if it applies. Do not use trailing zeros.)
The Correct Answer is ["3.1"]
Given:
- Total perphenazine to be administered: 200 mg
- The medication is to be divided into four equal doses
- Available perphenazine oral solution: 16 mg/mL
Step 1: Calculate the amount of perphenazine per dose
200 mg ÷ 4 = 50 mg/dose
Step 2: Calculate the volume of the oral solution per dose
(50 mg/dose) ÷ (16 mg/mL) = 3.125 mL/dose
Rounding to the nearest tenth, the nurse should administer 3.1 mL
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["1.5"]
Explanation
-Step 1: Define the amount of diazepam to be administered and the concentration of the available diazepam injection. We know that the diazepam dose is 7.5 mg and the diazepam concentration is 5 mg/mL.
-Step 2: Calculate the volume of diazepam injection to be administered. The calculation is 7.5 mg (diazepam dose) ÷ 5 mg/mL (diazepam concentration) = 1.5 mL.
-Step 3: Round the result to the nearest tenth. The rounded result is 1.5 mL.
The nurse should administer 1.5 mL of diazepam injection.
Correct Answer is ["8.8"]
Explanation
Step 1: The dose to be administered is175 mg of ziprasidone.
Step 2: The available ziprasidone injection has a concentration of20 mg/mL. This means that for every 1 mL of the solution, there are 20 mg of ziprasidone.
Step 3: To find out how many mL should be administered, we divide the dose by the concentration. So, 175 mg ÷ 20 mg/mL = 8.75 mL.
Step 4: Round the answer to the nearest tenth. So, 8.75 mL rounds to8.8 mL.
The nurse should administer 8.8 mL of ziprasidone injection
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