Correct Answer: D

Rationale: While catheterization can be uncomfortable, it does not typically result in long-term psychological harm, and obtaining a sterile specimen is important for accurate diagnosis.

Correct Answer: B

Rationale: The correct answer is to 'Avoid gluten.' Celiac disease is an autoimmune disorder triggered by gluten consumption, a protein found in wheat, barley, and rye. By avoiding gluten-containing foods, individuals with celiac disease can prevent damage to their small intestine and manage their symptoms effectively. Choice A, 'Avoid dairy products,' is incorrect as dairy is not directly related to celiac disease. Choice C, 'Avoid high-fat foods,' and Choice D, 'Avoid foods high in sugar,' are incorrect as they are not primary dietary concerns in managing celiac disease. The main focus should be on eliminating gluten sources from the diet.

Correct Answer: A

Rationale: A cough is a common clinical manifestation of pneumonia. Pneumonia often presents with symptoms such as cough, fever, chest pain, and difficulty breathing. The inflammation and infection in the lungs lead to the characteristic cough observed in patients with pneumonia. Diarrhea, rash, and vomiting are not typically associated with pneumonia and are less likely to be observed in a child with this condition.

Correct Answer: A

Rationale: Monitoring the temperature of a child with minimal change nephrotic syndrome is crucial for detecting early signs of infection, a common complication in this condition. In nephrotic syndrome, the child's immune system is compromised, making them more susceptible to infections. Monitoring for fever or any changes in temperature can help healthcare providers intervene promptly to prevent further complications. Hypertension (choice B) is not typically associated with minimal change nephrotic syndrome. Encephalopathy (choice C) refers to brain dysfunction and is not a common complication of nephrotic syndrome. Edema (choice D) is a primary manifestation of nephrotic syndrome but is not typically monitored through temperature assessment.

Correct Answer: D

Rationale: The classification system of congenital heart defects into acyanotic or cyanotic defects is problematic because children with acyanotic heart defects may develop cyanosis, complicating the differentiation. Cyanosis can occur in some acyanotic defects due to various reasons such as right-to-left shunting or decreased pulmonary blood flow, making the classification based solely on cyanosis misleading. Choice A is incorrect because while the classification may involve hemodynamics, the main issue lies in the potential for acyanotic defects to develop cyanosis. Choice B is incorrect as the ease of identifying children with cyanotic defects does not address the main problem with the classification system. Choice C is also incorrect as the presence of cyanosis is not the only factor determining the classification's validity.