A nurse is caring for a school-age child who has attention deficit disorder and a new prescription for methylphenidate 10 mg PO at 0800 and 1200 and 5 mg at 1600. What is the total daily dose in mg prescribed for this client? (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 ["25"]
Identify the doses and times:
8:00 AM: 10 mg
12:00 PM (noon): 10 mg
4:00 PM (1600): 5 mg
Add the doses together:
10 mg + 10 mg + 5 mg = 25 mg
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["2"]
Explanation
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
Correct Answer is ["1"]
Explanation
Convert milligrams (mg) to micrograms (mcg):
The desired dose is 0.5 mg.
We know that 1 mg = 1000 mcg.
Therefore, 0.5 mg = 0.5 x 1000 mcg = 500 mcg.
Identify the available tablet strength:
Each tablet contains 500 mcg of haloperidol.
Set up the calculation:
We need to find out how many tablets are needed to administer 500 mcg of the medication. We can use the following formula:
(Desired dose) / (Tablet strength) = Number of tablets
Plug in the values and calculate:
(500 mcg) / (500 mcg/tablet) = 1 tablet
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