A nurse is preparing to administer trazodone 300 mg PO daily divided equally every 8 hr to a client who has depression. Available is trazadone 50 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 Individual Dose:
The total daily dose is 300 mg.
This is divided equally every 8 hours.
There are 24 hours in a day, so there are 24 hours / 8 hours = 3 doses per day.
Individual dose: 300 mg / 3 doses = 100 mg per dose
Determine the Number of Tablets per Dose:
The available medication is in 50 mg tablets.
The individual dose is 100 mg.
Number of tablets: 100 mg / 50 mg/tablet = 2 tablets
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["9"]
Explanation
Identify the Desired Dose and Available Concentration:
Desired Dose: 18 mg of methylphenidate
Available Concentration: 10 mg/5 mL (This means there are 10 mg of methylphenidate in every 5 mL of solution)
Set up the Calculation:
We need to find the volume (in mL) that contains the desired dose of 18 mg.
We can use the following formula:
Volume (mL) = (Desired Dose (mg) / Available Concentration (mg)) * Volume of Available Solution (mL)
Plug in the Values and Calculate:
Volume (mL) = (18 mg / 10 mg) x 5 mL
Volume (mL) = 1.8 x 5 mL
Volume (mL) = 9 mL
Round to the Nearest Whole Number :
9 mL
Correct Answer is ["3"]
Explanation
Calculate the Dose per Administration:
The prescribed dose is 1.5 mg every 12 hours.
Calculate the Number of Doses per Day:
There are 24 hours in a day.
The medication is given every 12 hours.
Number of doses per day: 24 hours / 12 hours = 2 doses
Calculate the Total Daily Dose in Milligrams:
Dose per administration: 1.5 mg
Number of doses per day: 2
Total daily dose: 1.5 mg x 2 = 3 mg
Calculate the Total Daily Dose in Milliliters:
The available concentration is 1 mg/mL.
Total daily dose in milligrams: 3 mg
Total daily dose in milliliters: 3 mg / 1 mg/mL = 3 mL
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