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","C","E"]
Explanation
C. Hepatitis B, and E. HIV/AIDS.
Choice A rationale:
Diabetes. Diabetes is not an infectious disease but a metabolic disorder characterized by high blood sugar levels. It does not pose a risk of maternal complications due to infection and is not a risk factor for infectious diseases during the preconception phase.
Choice B rationale:
Rubella. Rubella is a viral infection that can cause serious complications during pregnancy, including congenital rubella syndrome, which can lead to developmental abnormalities in the fetus. It is crucial for women to be immune to rubella before conception to prevent these complications.
Choice C rationale:
Hepatitis B. Hepatitis B is a viral infection that can lead to liver inflammation and potentially serious complications. Pregnant women with hepatitis B can transmit the virus to their newborns during childbirth. Proper screening, vaccination, and medical management are necessary to prevent transmission and maternal complications.
Choice D rationale:
Anemia. Anemia is a condition characterized by a deficiency of red blood cells or hemoglobin in the blood. While anemia can have various causes, it is not an infectious disease and does not directly increase the risk of maternal complications due to infection during the preconception phase.
Choice E rationale:
HIV/AIDS. HIV/AIDS is a viral infection that weakens the immune system, making individuals more susceptible to
Correct Answer is B
Explanation
Choice A rationale:
Pulmonary stenosis is characterized by a systolic ejection murmur best heard at the upper left sternal border. It does not typically produce a continuous machinery-like murmur. Pulmonary stenosis results from narrowing at the pulmonary valve, obstructing blood flow from the right ventricle to the pulmonary artery.
Choice B rationale:
A continuous machinery-like murmur is characteristic of patent ductus arteriosus (PDA). PDA is a congenital heart defect where the ductus arteriosus, a fetal blood vessel that should close after birth, remains open, allowing continuous blood flow between the aorta and pulmonary artery. This murmur is often best heard in the left infraclavicular region.
Choice C rationale:
Ventricular septal defect (VSD) typically produces a harsh holosystolic murmur heard best at the lower left sternal border. VSD is a hole in the septum separating the ventricles, allowing blood to flow from the higher-pressure left ventricle to the lower-pressure right ventricle.
Choice D rationale:
Coarctation of the aorta causes a murmur due to increased blood flow across the aortic valve. However, this murmur is not continuous and is usually systolic and best heard in the back over the left scapula.
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