Correct Answer: B

Rationale: The correct answer is to offer a pacifier to the infant before administering tube feeding. Offering a pacifier helps stimulate the sucking reflex, preparing the infant for feeding and promoting digestion and comfort. Irrigating the tube with water (Choice A) is not typically the first action before tube feeding and may not be necessary. Slowly instilling formula (Choice C) should only be done after the infant is prepared for feeding. Placing the infant in the Trendelenburg position (Choice D) is not necessary and may not be recommended for tube feeding.

Correct Answer: B

Rationale: The correct answer is B: Diarrhea. Rotavirus infection commonly presents with symptoms such as watery diarrhea, vomiting, fever, and abdominal pain. While abdominal pain and vomiting are also associated with rotavirus infection, diarrhea is a hallmark feature. Constipation is not typically seen in cases of rotavirus infection. Therefore, the most likely clinical manifestation that the nurse would observe in a child with suspected rotavirus infection is diarrhea.

Correct Answer: C

Rationale: When a 3-year-old hospitalized child wets the bed during a nap, the nurse should respond by changing the child's clothes without discussing the incident. This approach helps to maintain the child's dignity, avoid embarrassment, and reduce anxiety related to bedwetting. Asking the child to help with remaking the bed (Choice A) may not be appropriate as it could cause unnecessary distress. Putting clean sheets on the bed over a rubber sheet (Choice B) addresses the aftermath but does not directly address the child's needs. Explaining that children should call the nurse when they need to go to the bathroom (Choice D) may not be effective in this immediate situation of bedwetting during a nap.

Correct Answer: C

Rationale: Postpartum hemorrhage can lead to shock due to excessive bleeding. Oxygen should be provided to support oxygenation. Treatment for shock, which includes maintaining vital signs and perfusion, is crucial. Uterine massage helps prevent further bleeding by promoting uterine contraction. This combination of interventions is essential for managing postpartum hemorrhage effectively. Choices A, B, and D lack the comprehensive approach needed for managing postpartum hemorrhage, as they do not address the treatment of shock, which is vital in this scenario.

Correct Answer: B

Rationale: Vomiting and poor appetite can be symptoms of neuroblastoma, a malignancy that affects the adrenal glands and sympathetic nervous system. A maculopapular rash on the palms (Choice A) is not typically associated with neuroblastoma. Irritability and poor weight gain (Choice C) may be non-specific findings and do not specifically point towards neuroblastoma. Auscultation findings of wheezing with diminished lung sounds (Choice D) are more indicative of respiratory conditions rather than neuroblastoma.