Correct Answer: D

Rationale: The correct instruction for circumcision care is to use warm water to gently clean the penis during diaper changes. Alcohol wipes should be avoided as they can cause irritation. Yellowish exudate around the head of the penis is a normal part of the healing process and does not require reporting unless accompanied by other concerning symptoms. Avoiding petroleum jelly on the circumcision site is important to prevent trapping moisture and bacteria, which can lead to infection.

Correct Answer: A

Rationale: The correct answer is A: Allergy. Allergy is not an infectious cause of diarrhea. Diarrhea caused by bacteria, parasites, and viruses is due to infection, while an allergy triggers an immune response that can lead to diarrhea but is not caused by an infectious agent. Choices B, C, and D are incorrect because bacteria, parasites, and viruses are known infectious causes of diarrhea, resulting from infections by these microorganisms.

Correct Answer: B

Rationale: In this case, the child is showing signs of respiratory distress, such as nasal flaring, intercostal retractions, and an increased respiratory rate. These are indicative of an ineffective breathing pattern. The child's compromised respiratory function requires immediate attention and intervention, making 'Ineffective breathing pattern' the most appropriate nursing diagnosis. Choices A, C, and D do not address the respiratory distress the child is experiencing and are not the priority in this situation.

Correct Answer: B

Rationale: Applying a warm compress to the lower abdomen can help relax the muscles and stimulate voiding in postpartum clients. It promotes vasodilation, increases blood flow to the area, and can aid in relieving urinary retention. Encouraging caffeine-free beverages can also be beneficial as caffeine can irritate the bladder and worsen the situation. Increasing fluid intake helps prevent urinary stasis and promotes bladder emptying. Kegel exercises can strengthen pelvic floor muscles over time, but in the immediate situation of difficulty voiding, a warm compress is more appropriate.

Correct Answer: B

Rationale: The correct answer is B - Rotavirus. Rotavirus vaccine is available to prevent diarrhea in children. Rotavirus is a common cause of severe diarrhea in infants and young children globally, and vaccination has been shown to be effective in reducing the burden of this disease. Choices A and C are incorrect because there is no specific vaccine available for Adenovirus or Enterovirus to prevent diarrhea in children. Choice D is incorrect because while vaccines are available for some viruses that can cause diarrhea in children, not all mentioned in the choices have a specific vaccine available.