You have an order to give a child a dose of Phenergan based on the child's body surface area. The normal adult dose is 25 mg q4-6 h prn. The child's BSA is 0.62m2. The Phenergan is available as 25 mg/5ml. How many ml would you administer to the child ? (Round to the nearest tenth)
The Correct Answer is ["1.8"]
Use BSA fraction of adult dose: child dose (mg) = adult dose × (child BSA / 1.73).
Calculation: 25 mg × (0.62 / 1.73) = 8.96 mg (approx).
Concentration = 25 mg / 5 mL = 5 mg/mL.
Volume = 8.96 mg ÷ 5 mg/mL = 1.79 mL
rounded to nearest tenth = 1.8 mL.
Correct answer: 1.8ml
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Calcium carbonate: For borderline/low serum calcium, oral calcium supplements (e.g., calcium carbonate) are commonly used to raise serum calcium and provide elemental calcium; choice depends on clinical context and provider order.
B. Ibandronate: Ibandronate is a bisphosphonate for osteoporosis (reduces bone resorption) -it does not directly treat low serum calcium and may further lower serum calcium temporarily.
C. Calcitonin: Calcitonin lowers serum calcium by inhibiting bone resorption and is used in hypercalcemia or certain bone disorders, not to raise low calcium.
D. Zoledronic acid: Zoledronic acid (a bisphosphonate) is not used to correct low serum calcium; it may transiently lower serum calcium.
Correct Answer is B
Explanation
A. Mix the liquid medication with juice and take it after meals: Calcitonin (intranasal formulation) should not be mixed with juice for swallowing; typical instruction is nasal administration.
B. Alternate nostrils each time calcitonin is inhaled: Intranasal calcitonin is usually given by alternating nostrils with each dose to reduce local irritation and ensure even nasal mucosa exposure.
C. Swallow tablets on an empty stomach with plenty of water: Calcitonin is not given as tablets to be swallowed for osteoporosis (intranasal or injectable forms are used).
D. Watch for skin rash and redness when applying calcitonin topically: Topical application is not the usual route; monitor for local nasal irritation with intranasal forms rather than topical skin redness.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.