A 4-year-old child who weighs 44 lbs is diagnosed with Streptococcal Pharyngitis and is prescribed Penicillin. 40 mg/kg/day, twice a day for 10 days. The suspension is written as 400 mg/5 ml. Calculate one dose in mg.
400 mg.
800 mg.
1200 mg.
1600 mg.
The Correct Answer is B
Choice A rationale:
The dosage prescribed for the child is 40 mg/kg/day, twice a day for 10 days. The child weighs 44 lbs, which is approximately 20 kg (1 lb = 0.45 kg). Therefore, the total daily dosage would be 40 mg/kg * 20 kg = 800 mg. This is split into two doses, so each dose would be 400 mg, not 400 mg per 5 ml as in the suspension.
Choice B rationale:
As explained above, the total daily dosage is 800 mg, split into two doses of 400 mg each. The suspension is written as 400 mg/5 ml, so one dose would be 400 mg.
Choice C rationale:
This choice is incorrect because it does not accurately calculate the dosage based on the child's weight and the prescribed dosage regimen.
Choice D rationale:
This choice is incorrect because it suggests a higher dose than what is prescribed. The correct dosage, based on the child's weight and prescription, is 800 mg per day, split into two doses of 400 mg each.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["B","D","E"]
Explanation
Choice A rationale:
Weight loss is not a typical symptom associated with juvenile hypothyroidism. Hypothyroidism often leads to weight gain due to a slowed metabolism. Weight loss is more commonly associated with hyperthyroidism, where the thyroid gland is overactive.
Choice B rationale:
Sleepiness or fatigue is a common symptom of hypothyroidism. The thyroid hormone plays a vital role in regulating metabolism and energy levels. In hypothyroidism, the lack of thyroid hormone can lead to fatigue and excessive sleepiness.
Choice C rationale:
Diarrhea is not a typical symptom of hypothyroidism. Hypothyroidism is more commonly associated with constipation due to the slowing down of the digestive system.
Choice D rationale:
Puffiness around the eyes, also known as periorbital edema, is a symptom of hypothyroidism. Thyroid hormones help regulate fluid balance in the body. In hypothyroidism, the decreased levels of thyroid hormones can lead to fluid retention, causing puffiness, especially around the eyes.
Choice E rationale:
Limited hair growth, or thinning of hair, is a common symptom of hypothyroidism. Thyroid hormones are essential for hair growth and maintenance. In hypothyroidism, hair follicles can become thin, leading to hair loss and limited growth.
Correct Answer is A
Explanation
Choice A rationale:
A brilliant, uniform red reflex observed during a funduscopic examination is a normal finding. It indicates the absence of any abnormalities in the retina or lens. A normal red reflex is essential in ruling out serious conditions such as retinoblastoma, cataracts, or other eye abnormalities.
Choice B rationale:
An abnormal red reflex, especially if it is not uniform and brilliant, could indicate underlying eye conditions and would require referral to an ophthalmologist for further evaluation. However, in this scenario, the description provided indicates a normal finding, making this choice incorrect.
Choice C rationale:
A uniform red reflex does not suggest a possible visual defect that requires vision screening. A normal red reflex indicates the absence of significant visual abnormalities, making this choice incorrect.
Choice D rationale:
Small hemorrhages in the eye would not present as a brilliant, uniform red reflex. Hemorrhages typically appear as dark spots or patches and would be an abnormal finding requiring further evaluation. This choice is incorrect in the context of the described scenario.
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