A nurse is preparing to administer risperidone 25 mg, IM to an older adult client who has schizophrenia. Available is risperidone Injection 25 mg/2 mL. How many mL should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero it applies. Do not use a trailing zero.)
The Correct Answer is ["2"]
Identify the desired dose:
The doctor has ordered 25 mg of risperidone.
Identify the available medication concentration:
The available risperidone injection is 25 mg in 2 mL. This can be written as 25 mg/2 mL.
Set up the calculation:
We need to find out how many mL are needed to administer 25 mg of the medication. We can use the following formula:
(Desired dose) / (Concentration) = Volume to administer
Plug in the values and calculate:
(25 mg) / (25 mg/2 mL) = 2 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["0.3"]
Explanation
Understand the relationship between milligrams (mg) and grams (g):
1 gram (g) is equal to 1000 milligrams (mg).
Set up the conversion:
We need to convert 300 mg to grams. We can use the following formula:
(Milligrams) / (1000 mg/g) = Grams
Plug in the value and calculate:
(300 mg) / (1000 mg/g) = 0.3 g
Correct Answer is ["0.5"]
Explanation
Identify the desired dose:
The doctor has ordered 10 mg of ziprasidone.
Identify the available medication concentration:
The available ziprasidone injection is 20 mg/mL.
Set up the calculation:
We need to find out how many mL are needed to administer 10 mg of the medication. We can use the following formula:
(Desired dose) / (Concentration) = Volume to administer
Plug in the values and calculate:
(10 mg) / (20 mg/mL) = 0.5 mL
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