Correct Answer: B

Rationale: The weight loss is most likely due to the reduction of edema, as glomerulonephritis often causes fluid retention that resolves with treatment, leading to significant weight loss.

Correct Answer: A

Rationale: The correct action when intermittently gavage feeding a preterm infant is to allow the formula to flow by gravity. This method helps prevent overfeeding and aspiration, which can occur if the formula is delivered too quickly under pressure. Choice B is incorrect as sucking on the tube can cause complications. Choice C is incorrect as the tube is typically inserted through the mouth. Choice D is incorrect as steady pressure can lead to rapid delivery of the formula, increasing the risk of complications.

Correct Answer: D

Rationale: The Hib conjugate vaccine is crucial for protecting children from several severe infections caused by Haemophilus influenzae type b, including bacterial meningitis, epiglottitis, bacterial pneumonia, septic arthritis, and sepsis. Therefore, all the provided options are correct. Bacterial meningitis, epiglottitis, and bacterial pneumonia are serious conditions that the Hib vaccine effectively prevents, making choice D the correct answer. Choices A, B, and C are incorrect when considered individually as the Hib vaccine does not protect against only one specific infection; rather, it provides immunity against multiple diseases caused by Haemophilus influenzae type b.

Correct Answer: C

Rationale: The correct answer is C, the Supplemental Food Program for Women, Infants, and Children (WIC). WIC provides nutritional assistance to low-income pregnant women, breastfeeding women, and children under 5. The Division of Maternal and Child Health (Choice A) focuses on promoting the health of mothers and children but does not provide direct nutritional assistance. Medicaid (Choice B) is a health insurance program for low-income individuals but does not specifically address nutritional needs. The State Children's Health Insurance Program (Choice D) provides health insurance for children in low-income families but does not offer nutritional support like WIC does.

Correct Answer: A

Rationale: Hemolytic uremic syndrome (HUS) typically presents with hematuria, anorexia, hypertension, and purpura due to the hemolytic anemia, thrombocytopenia, and renal failure that characterize this condition.