A pediatric patient weighing 22 kg is prescribed amoxicillin 50 mg/kg/day in divided doses every 8 hours. The medication is available as a suspension containing 125 mg/5 mL. How many mL of the suspension should the nurse administer for each dose?
11.67 mL
14.67 mL
15.67 mL
17.67 mL
The Correct Answer is B
Calculate the total daily dose in milligrams (mg).
Total daily dose (mg) = Prescribed dose (mg/kg/day) × Weight (kg)
= 50 mg/kg/day × 22 kg
= 1100 mg/day.
Determine the number of doses per day:
Doses are given every 8 hours, so Number of doses per day = 24 hours / 8 hours
= 3 doses/day.
Calculate the dose per administration in milligrams (mg).
Dose per administration (mg) = Total daily dose (mg) / Number of doses per day
= 1100 mg / 3 doses
= 366.666 mg.
Available concentration of the amoxicillin suspension:
= 125 mg / 5 mL.
Calculate the volume in milliliters (mL) to administer for each dose.
Volume per dose (mL) = Desired dose per administration (mg) / (Available concentration (mg) / Available volume (mL))
Volume per dose (mL) = 366.666 mg / (125 mg / 5 mL)
= 366.666 mg × (5 mL / 125 mg)
= (366.666 × 5) / 125 mL
= 1833.33 / 125 mL
= 14.666 mL.
=14. 67 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["B","C","D"]
Explanation
A. Identity vs. role confusion: This stage occurs during adolescence and focuses on developing a personal identity and sense of self. Failure to achieve this leads to confusion about one’s role in society.
B. Initiative vs. guilt: Typical of preschool-aged children, this stage involves asserting power and control through directing play and social interactions. Successful initiative builds confidence; failure leads to guilt.
C. Autonomy vs. shame and doubt: Occurs in toddlerhood when children develop personal control over physical skills and independence. Success leads to autonomy; failure results in feelings of shame and doubt.
D. Trust vs. mistrust: The first stage, occurring from birth to about 18 months, where infants learn to trust caregivers to meet their needs. Consistent care builds trust; inconsistency leads to mistrust.
E. Industry vs. inferiority: School-age children focus on mastering skills and gaining competence. Positive feedback leads to a sense of industry; repeated failure results in feelings of inferiority.
Correct Answer is B
Explanation
A. "Can I listen to your lungs?": Using a question format may give the toddler the impression that they can refuse the procedure. Toddlers often assert autonomy and may say “no,” so it’s better to use clear, simple statements rather than yes/no questions.
B. "I am going to listen to your heart.": A direct, simple, and non-threatening statement helps prepare the toddler for what will happen. It uses developmentally appropriate language and avoids giving a false sense of choice, reducing anxiety and promoting cooperation.
C. "I am going to take your blood pressure now.": The term “blood pressure” may be unfamiliar and sound intimidating to a toddler. Without context or simplified language, this may provoke fear or confusion about what is being done.
D. "Can you stand very still while I feel how warm you are?": This approach includes a question, which may result in resistance. Also, toddlers may not be able to follow complex instructions like standing still, and it doesn’t clearly explain the use of a thermometer or what will happen.
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