A healthcare provider prescribes one 250 mg capsule of amoxicillin to be administered tid for 5 days to a client.
Calculate the number of capsules of amoxicillin required for 5 days.
15 capsules
5 capsules
25 capsules
3 capsules
The Correct Answer is A
To find the number of capsules of amoxicillin required for 5 days, you need to calculate the following:
- The total dose of amoxicillin in milligrams (mg) for 5 days using the formula: Total dose (mg) = Prescribed dose (mg) x Frequency (times/day) x Duration (days)
- The number of capsules of amoxicillin using the formula: Number of capsules = Total dose (mg) / Strength per capsule (mg)
First, use the formula for total dose to find the amount of amoxicillin in milligrams for 5 days:
Total dose (mg) = Prescribed dose (mg) x Frequency (times/day) x Duration (days)
Since the prescribed dose is 250 mg, the frequency is 3 times per day, and the duration is 5 days, plug in these values into the formula:
Total dose (mg) = 250 mg x 3 times/day x 5 days
Simplify and solve for the total dose:
Total dose (mg) = 3750 mg
Next, use the formula for number of capsules to find how many capsules of amoxicillin are needed:
Number of capsules = Total dose (mg) / Strength per capsule (mg)
Since the total dose is 3750 mg and the strength per capsule is 250 mg, plug in these values into the formula:
Number of capsules = 3750 mg / 250 mg
Simplify and solve for the number of capsules:
Number of capsules = 15
Therefore, the client needs **15 capsules** of amoxicillin for 5 days.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
The IV infusion will be completed at 13:20.
This answer is correct because it is based on a simple division and addition calculation. The nurse can divide the total volume of the infusion by the infusion rate to get the duration of the infusion in hours, as follows:
1000 mL / 250 mL/hr = 4 hr
Therefore, the infusion will take 4 hours to complete. The nurse can add 4 hours to the start time of the infusion to get the end time, as follows:
09:20 + 4:00 = 13:20
Therefore, the IV infusion will be completed at 13:20.
Correct Answer is D
Explanation
To answer this question, we need to understand the principles of pediatric dosage calculations and the factors that affect them. Pediatric dosages are usually calculated based on the child's weight or body surface area, and sometimes adjusted for age, organ function, or disease severity¹. However, not all medications that are used in adults are safe or effective in children. Some medications may have different pharmacokinetics, pharmacodynamics, adverse effects, or interactions in children than in adults².
Therefore, it is important to check the drug insert or label for any contraindications, warnings, or precautions for pediatric use before prescribing or administering a medication to a child. If the drug insert states that the medication is not for pediatric use, it means that the medication has not been tested or approved for use in children, or that it has been shown to be harmful or ineffective in children. In this case, a pediatric dose calculated from an adult dose should be avoided, as it may result in serious toxicity or therapeutic failure. The healthcare provider should consult a pediatric specialist, a pharmacist, or a reliable drug reference for alternative medications or dosing recommendations.
The other options are not correct because they do not necessarily warrant avoiding a pediatric dose calculated from an adult dose.
Option a. If the drug insert does not specify a pediatric dose, it means that there is insufficient data or evidence to support a specific pediatric dose, but it does not mean that the medication is contraindicated or unsafe in children. The healthcare provider should use clinical judgment and available resources to determine the appropriate dose for the child³.
Option b. If the child has an elevated temperature that has not responded to treatment, it means that the child may have an infection or inflammation that may affect the absorption, distribution, metabolism, or excretion of some medications. The healthcare provider should monitor the child's condition and adjust the dose accordingly, but it does not mean that the medication should be avoided altogether⁴.
Option c. If the child has gained or lost weight in the past month, it means that the child's weight may have changed significantly since the last dose calculation. The healthcare provider should weigh the child and recalculate the dose based on the current weight, but it does not mean that the medication should be avoided altogether.
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