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 C
Explanation
Choice A rationale:
A stat magnesium sulfate level (Choice A) is unnecessary in this situation. The symptoms described - increased temperature, pulse rate, and blood pressure, along with absent deep tendon reflexes - indicate magnesium sulfate toxicity. Discontinuing the infusion and managing the symptoms take precedence over checking the magnesium sulfate level.
Choice B rationale:
Administering oxygen (Choice B) is important for maintaining the patient's oxygenation levels, but it does not address the magnesium sulfate toxicity. The primary intervention should be to discontinue the infusion and manage the symptoms.
Choice C rationale:
Discontinuing the magnesium sulfate infusion (Choice C) is the correct action in this situation. The symptoms, including absent deep tendon reflexes and the patient's complaint of thirst and warmth, indicate magnesium sulfate toxicity. Stopping the infusion is crucial to prevent further complications.
Choice D rationale:
Hydralazine (Choice D) is an antihypertensive medication and is not the appropriate intervention for magnesium sulfate toxicity. Managing magnesium sulfate toxicity involves discontinuing the infusion and providing supportive care.
Correct Answer is B
Explanation
Choice A rationale:
With good control of maternal glucose levels, sudden and unexplained stillbirth is no longer a major concern. While controlling maternal glucose levels is important in diabetic pregnancies, it does not eliminate all risks, including the risk of stillbirth. However, the most significant cause of perinatal loss in diabetic pregnancies is congenital malformations. Poorly controlled diabetes during pregnancy can lead to structural abnormalities in the fetus, increasing the risk of perinatal loss.
Choice B rationale:
The most important cause of perinatal loss in diabetic pregnancy is congenital malformations. This is the correct answer. Poorly controlled diabetes increases the risk of congenital malformations in the fetus, making it a significant concern in diabetic pregnancies. Proper management of diabetes and prenatal care are essential to reduce this risk.
Choice C rationale:
Infants of mothers with diabetes have the same risks for respiratory distress syndrome because of careful monitoring. Infants of mothers with diabetes are at an increased risk of respiratory distress syndrome due to delayed lung maturation. Careful monitoring is essential, but it does not eliminate this risk. Proper management and timely interventions are necessary to minimize the impact of respiratory distress syndrome in these infants.
Choice D rationale:
At birth, the neonate of a diabetic mother is no longer at any greater risk. Infants of diabetic mothers are at increased risk for various complications, both during and after birth. These risks include hypoglycemia, respiratory distress syndrome, and hypocalcemia, among others. Close monitoring and appropriate interventions are required to ensure the well-being of the newborn.
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