A nurse is preparing to administer 0.5 mg haloperidol PO to a cilent. Available is haloperidol 500 mcg tablets. How many tablets should the nurse (Round the answer to the nearest whole number. Use a leading, zero if it applles. Do not use a trailing zero)
The Correct Answer is ["1"]
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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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["6"]
Explanation
Determine the individual dose:
The total daily dose is 90 mg, divided into three equal doses.
90 mg / 3 doses = 30 mg per dose
Calculate the number of tablets per dose:
Each tablet contains 15 mg of phenelzine.
The required dose is 30 mg.
30 mg / 15 mg per tablet = 2 tablets per dose
Calculate the total number of tablets per day:
The patient takes 2 tablets per dose, and there are 3 doses per day.
2 tablets/dose x 3 doses/day = 6 tablets per day
Correct Answer is ["1.6"]
Explanation
Identify the desired dose:
The doctor has ordered 40 mg of chlorpromazine hydrochloride.
Identify the concentration of the available medication:
The available chlorpromazine hydrochloride injection is 25 mg/mL.
Set up the calculation:
We need to find out how many mL are needed to administer 40 mg of the medication. We can use the following formula:
(Desired dose) / (Concentration) = Volume to administer
Plug in the values and calculate:
(40 mg) / (25 mg/mL) = 1.6 mL
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