Order: Ceftriaxone 300 mg IV Q12H for a 6 month old infant with a serious infection who weighs 18 lbs. The recommended dosage is 50-75 mg/kg/day in divided doses BID. Prove mathematically (mg/kg/day) the ordered dose and is it safe to give Safe/Unsafe)?
The Correct Answer is ["612.375"]
To calculate the ordered dose of Ceftriaxone in mg/kg/day, we can follow these steps:
Convert the weight to kg:
Weight in kg= Weight in lbs /2.2046
Weight in kg= 18lbs/2.2046≈8.165 kg
Calculate the daily dosage range:
Using the recommended dosage range of 50-75 mg/kg/day:
Minimum daily dosage= 50mg/kg/day × Weight in kg
Maximum daily dosage =75mg/kg/day×Weight in kg
Calculate the ordered dose:
Ordered dose=Dosage per administration × Frequency per day
Ordered dose= 300mg×2times per day= 600mg/day
Now, let's calculate the daily dosage range:
Minimum daily dosage=50mg/kg/day×8.165kg=408.25mg/day
Maximum daily dosage=75mg/kg/day×8.165kg=612.375mg/day
The ordered dose of 600 mg/day falls within the calculated range of 408.25-612.375 mg/day, so the ordered dose is within the recommended dosage range for a serious infection.
Therefore, the ordered dose of Ceftriaxone 300 mg IV Q12H for a 6-month-old infant weighing 18 lbs is considered safe based on the calculated dosage range.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Calmly tell the child to stop:
While remaining calm is important, simply telling the child to stop might not be effective during a tantrum. Toddlers experiencing a meltdown might not respond immediately to verbal commands.
B. Distract the child by buying a toy:
Using material objects to distract a child during a tantrum might reinforce the behavior by rewarding it with something desired. It's also not always feasible to buy a toy instantly.
C. Appear to ignore them:
This strategy might involve not engaging directly with the tantrum, which could sometimes help to de-escalate the situation. However, it's crucial to ensure the child is in a safe environment and to offer support if necessary.
D. Place the child in time-out for 3 min:
Time-out can be a useful method for calming down a child. However, its effectiveness depends on the child's age, temperament, and the consistency of applying this method. Time-out might not be suitable for all children, especially for a 2-year-old who might not fully understand the concept.
Correct Answer is B
Explanation
A. The deciduous teeth falling out:
The falling out of deciduous (baby) teeth is a natural part of early childhood development and is not specifically indicative of adolescence. The loss of deciduous teeth usually occurs before the age of 12.
B. The beginning of puberty:
Puberty is the period of physical and sexual development that marks the transition from childhood to adolescence. It involves the development of secondary sexual characteristics, such as breast development in girls and facial hair growth in boys, along with other physical changes.
C. The child becoming self-supported:
Becoming self-supported is a broad concept that can occur at various stages of development and is not a specific marker of the beginning of adolescence. Adolescents may gain increasing independence, but this is a gradual process.
D. The fine motor skills fully developed:
Fine motor skills typically develop during early childhood, and the full development of these skills is not a specific marker for the beginning of adolescence. Fine motor skills involve the coordination of small muscle movements and are important for tasks like writing and drawing.
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