A nurse is preparing to administer amitriptyline 300 mg PO dally divided equally every 12 hr to a client who has post-traumatic stress disorder. Available is amitriptyline 75 mg tablets. How many tablets should the nurse administer in each dose? (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 ["2"]
Calculate the dose per administration:
The total daily dose is 300 mg, divided equally every 12 hours.
There are 24 hours in a day, so there are 24 hours / 12 hours = 2 doses per day.
Each dose is 300 mg / 2 doses = 150 mg.
Calculate the number of tablets per dose:
Each tablet contains 75 mg of amitriptyline.
The required dose is 150 mg.
150 mg / 75 mg per tablet = 2 tablets per dose
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["1"]
Explanation
Calculate the number of doses per day:
The medication is administered every 8 hours.
There are 24 hours in a day, so there are 24 hours / 8 hours = 3 doses per day.
Calculate the dose per administration:
The total daily dose is 450 mg.
There are 3 doses per day, so each dose is 450 mg / 3 doses = 150 mg.
Calculate the number of tablets per dose:
Each tablet contains 150 mg of bupropion.
The required dose is 150 mg.
150 mg / 150 mg per tablet = 1 tablet per dose
Correct Answer is ["3"]
Explanation
Identify the desired dose:
The doctor has ordered 3 mg of benztropine mesylate.
Identify the available medication concentration:
The available benztropine mesylate injection is 1 mg/mL.
Set up the calculation:
We need to find out how many mL are needed to administer 3 mg of the medication. We can use the following formula:
(Desired dose) / (Concentration) = Volume to administer
Plug in the values and calculate:
(3 mg) / (1 mg/mL) = 3 mL
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