The healthcare provider prescribes acyclovir 800 mg PO every 6 hours for an adolescent with chicken pox. The drug is available in 400 mg tablets PO. How many tablets should the nurse administer to the client every 24 hours? (Enter the numeric value only.)
The Correct Answer is ["8"]
Formula:
Total daily dose = Desired dose per administration x Number of administrations per day
Desired dose per administration = 800 mg
Available dose per tablet = 400 mg
Number of tablets per administration = Desired dose per administration / Available dose per tablet
= 800 mg / 400 mg/tablet
= 2 tablets
Number of administrations per day = every 6 hours means 24 hours / 6 hours/administration
= 4 administrations
Total daily tablets = Number of tablets per administration x Number of administrations per day
= 2 tablets/administration x 4 administrations/day
= 8 tablets
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["1.8"]
Explanation
Calculate the prescribed dose in milligrams:
Prescribed dose (mg) = Ordered dose (mg/kg/dose) x Child's weight (kg)
= 0.3 mg/kg/dose x 30 kg
= 9 mg
Available concentration = 5 mg/mL
Calculate the volume to administer in mL:
Volume to administer (mL) = Desired dose (mg) / Available concentration (mg/mL)
= 9 mg / 5 mg/mL
= 1.8 mL
Correct Answer is ["5"]
Explanation
Convert the child's weight from pounds to kilograms:
Weight (kg) = Weight (pounds) / 2.2 pounds/kg
= 44 pounds / 2.2 pounds/kg
= 20 kg
Calculate the prescribed dose for the first day:
Dose on day 1 (mg) = Initial dose (mg/kg) x Child's weight (kg)
= 10 mg/kg x 20 kg
= 200 mg
Calculate the volume to administer on the first day:
Volume to administer (mL) = Desired dose (mg) / Available concentration (mg/mL)
= 200 mg / (200 mg / 5 mL)
= 5 mL
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