A child who weighs 16 pounds receives a prescription for amoxicillin 25 mg/kg/day by mouth in divided doses every 12 hours.
The bottle is labeled, "Amoxicillin for Oral Suspension, USP 200 mg per 5 mL.”. How many mL should the nurse administer with each dose? (Enter numerical value only.
If rounding is required, round to the nearest tenth.)
The Correct Answer is ["2.3"]
Step 1 is to convert the child's weight from pounds to kilograms. 16 pounds ÷ 2.2 = 7.3 kg.
Step 2 is to calculate the total daily dose in mg. 25 mg/kg × 7.3 kg = 182.5 mg.
Step 3 is to determine the dose per administration, divided by 2 since the dose is given every 12 hours. 182.5 mg ÷ 2 = 91.25 mg.
Step 4 is to convert the dose from mg to mL using the concentration of the medication. 91.25 mg ÷ (200 mg/5 mL) = 91.25 ÷ 40 = 2.3 mL per dose. The answer is 2.3 mL.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale
Encouraging the child to dress in clothing that suits her sexual maturity level is not an appropriate approach for managing precocious puberty. The goal of treatment with LHRH is to delay further development until the appropriate age, allowing the child to dress according to her chronological age rather than her advanced physical maturity.
Choice B rationale
The purpose of LHRH therapy is to regulate and normalize the child's hormonal levels, which can slow or stop the progression of precocious puberty. As the therapy takes effect, differences in sexual maturity between the child and her peers should diminish over time, allowing her development to align more closely with her age group.
Choice C rationale
LHRH treatment for precocious puberty is typically not lifelong. It is used to delay puberty until a more appropriate age. Once treatment is stopped, the child's body will resume normal pubertal development. Parents should understand that the therapy is temporary and aimed at managing early onset puberty.
Choice D rationale
Starting the child on birth control pills is not a standard treatment for precocious puberty. The goal of LHRH therapy is to manage hormonal levels to delay puberty, not to prevent pregnancy. Birth control pills are not necessary and do not address the underlying condition being treated with LHRH therapy. .
Correct Answer is A
Explanation
Choice A rationale
A sore throat, often due to Streptococcus pyogenes, is a significant precursor to acute rheumatic fever. The body’s immune response to the infection can attack its own tissues, leading to rheumatic heart disease if untreated.
Choice B rationale
Influenza is a viral infection and does not typically lead to acute rheumatic fever. While it can cause significant illness, its mechanism and sequelae are unrelated to those of rheumatic fever.
Choice C rationale
Chickenpox, caused by the varicella-zoster virus, presents with distinct symptoms like a vesicular rash and is not linked to rheumatic fever. It primarily affects the skin and nervous system, not the heart.
Choice D rationale
Mumps, a viral infection, mainly impacts the salivary glands and sometimes the pancreas and testes but is not associated with rheumatic fever. Its pathology differs from the immune-mediated damage seen in rheumatic fever.
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