The order reads "amoxicillin 20mg/kg/dose PO every 8 hours." The child weighs 33 pounds. Using the label below, how many mL will you administer per dose? (Enter a number only, answer to the nearest tenths place)
The Correct Answer is ["12"]
1. Convert the child's weight from pounds to kilograms:
There are approximately 2.2 pounds in 1 kilogram.
33 pounds / 2.2 pounds/kg = 15 kg (approximately)
2. Calculate the total milligrams of amoxicillin needed per dose:
The order is for 20 mg/kg/dose.
The child weighs 15 kg.
20 mg/kg * 15 kg = 300 mg
3. Determine the concentration of the amoxicillin suspension:
The label shows the concentration is 125 mg/5 mL.
4. Set up a proportion to find the volume (in mL) needed:
125 mg / 5 mL = 300 mg / x mL
5. Solve for x:
Cross-multiply: 125x = 300 * 5
125x = 1500
x = 1500 / 125
x = 12 mL
Answer: You will administer 12 mL per dose.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A) Shake bottle well, pull ear outward and downward, instill drops: This method is typically used for younger children, such as infants or toddlers, as the ear canal in younger children is more horizontal. However, this is not the appropriate method for a 12-year-old.
B) Shake bottle well, pull ear outward and upward, instill drops: This method is incorrect because the ear should be pulled outward and upward for a child under 3 years old, not for a 12-year-old.
C) Warm bottle in hand, pull ear outward and upward, instill drops: This is the correct method for a 12-year-old client. The ear should be pulled outward and upward to straighten the ear canal, allowing the drops to reach the deeper parts of the ear. Additionally, warming the bottle in your hands prevents discomfort that might arise from cold drops being instilled in the ear.
D) Warm bottle in hand, pull ear outward and downward, instill drops: This method is appropriate for children under 3 years old. For children older than 3 years, the ear should be pulled upward to open the ear canal.
Correct Answer is A
Explanation
To determine if the client's dose is safe and therapeutic, we need to calculate the appropriate dosing range based on the client's weight and compare it with the ordered dose.
Client's weight: 45 kg
Ordered dose: 500 mg every 8 hours, which equals 1500 mg/day (500 mg × 3 doses).
Calculate the therapeutic range:
The dosing range in the Davis Drug Guide is 20 to 40 mg/kg/day. So, for this client, based on their weight of 45 kg:
Minimum dose: 20 mg × 45 kg = 900 mg/day
Maximum dose: 40 mg × 45 kg = 1800 mg/day
The ordered dose of 1500 mg/day falls within this range (900 mg/day to 1800 mg/day), which means it is safe and therapeutic for the client.
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