A nurse is preparing to administer acetaminophen 15 mg/kg PO to a preschool child for fever. The child weighs 30 lb. Available is acetaminophen liquid 160 mg/5 mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["6.4"]
Convert the child's weight from pounds to kilograms:
Weight in pounds: 30 lb
Conversion: 1 lb ≈ 0.454 kg
Weight in kg: 30 lb× 0.454 kg/lb =13.62 kg
30lb×0.454kg/lb=13.62kg
Calculate the dose in mg:
Dose: 15 mg/kg
15 mg/kg ×13.62kg=204.3 mg
Determine the volume to administer:
Available concentration: 160 mg/5 mL
Volume in mL:
204.3 mg ÷160 mg/5 mL
= 204.3mg×5ml ÷160mg
=6.4mL
The nurse should administer 6.4 mL of acetaminophen.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Capillary refill less than 2 seconds: A capillary refill time of less than 2 seconds indicates good peripheral circulation, which is normal and not a cause for concern in this context. It is not the priority.
B. Tingling in the right foot Rationale: Tingling (paraesthesia) can be a sign of nerve damage or compromised circulation, which may indicate complications such as compartment syndrome. This is a priority finding because it can lead to severe consequences if not addressed promptly.
C. 2+ right pedal pulse Rationale: A 2+ pedal pulse indicates a normal pulse strength, which suggests that there is adequate blood flow to the extremity. It is not a priority compared to the potential for neurological or circulatory compromise.
D. Respiratory rate 24/min Rationale: A respiratory rate of 24/min is within the normal range for a school-age child (18-30 breaths per minute). While it is important to monitor vital signs, it is not a priority concern related to the fracture.
Correct Answer is ["6.4"]
Explanation
Convert the child's weight from pounds to kilograms:
Weight in pounds: 30 lb
Conversion: 1 lb ≈ 0.454 kg
Weight in kg: 30 lb× 0.454 kg/lb =13.62 kg
30lb×0.454kg/lb=13.62kg
Calculate the dose in mg:
Dose: 15 mg/kg
15 mg/kg ×13.62kg=204.3 mg
Determine the volume to administer:
Available concentration: 160 mg/5 mL
Volume in mL:
204.3 mg ÷160 mg/5mL
= 204.3mg×5ml ÷160mg
=6.4mL
The nurse should administer 6.4 mL of acetaminophen.
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