Correct Answer: A

Rationale: It is essential for the nurse to guide the client on the initial steps in involving her 2 and 12-year-old sons in the care of their newborn sister. The most appropriate response is to 'Focus on your sons' needs during the first days at home.' In an expanded family, parents should prioritize reassuring older children that they are loved and as important as the newborn. This response acknowledges the importance of ensuring the well-being and emotional adjustment of the older siblings during the transition period. Choices B, C, and D are less appropriate as they do not directly address the emotional needs and adjustment of the older children during this significant family change.

Correct Answer: B

Rationale: In pyloric stenosis, hypertrophy of the circular muscles of the pylorus causes narrowing of the pyloric canal between the stomach and the duodenum. The hallmark symptom of pyloric stenosis is projectile vomiting, which is the forceful expulsion of stomach contents. Other common symptoms include irritability, hunger and crying, constipation, and signs of dehydration. Watery diarrhea (Choice A) is not a typical symptom of pyloric stenosis. Increased urine output (Choice C) is not directly associated with this condition. Vomiting large amounts of bile (Choice D) is not a characteristic symptom of pyloric stenosis; instead, the vomitus in pyloric stenosis is non-bilious.

Correct Answer: C

Rationale: Osteomyelitis is an infection in the bone that can be caused by bacteria reaching the bone either from outside the body (such as through an open fracture) or inside the body (such as through the bloodstream). This response provides a concise and accurate explanation of osteomyelitis, making it the best choice. Choices A and B provide inaccurate information about the condition, attributing it to age-related bone breakdown and Vitamin D deficiency, which are not correct causes of osteomyelitis. Choice D deflects the question instead of providing the patient with a clear explanation, making it an inappropriate response.

Correct Answer: B

Rationale: The correct answer is to question the order for a CT of the spine with contrast. The patient's elevated creatinine level of 2.5mg/dL indicates impaired kidney function. Contrast agents are nephrotoxic and can further compromise kidney function in patients with existing nephropathy. Therefore, it is crucial to avoid contrast-enhanced imaging studies in patients with impaired renal function. Choice A: Administering 30 Units of Lantus Daily is not contraindicated based on the provided lab values. Choice C: Ordering an X-ray of the abdomen and chest is not contraindicated based on the provided lab values. Choice D: Administering heparin subcutaneously at 5,000 Units every 12 hours is not contraindicated based on the provided lab values.

Correct Answer: C

Rationale: Use patience and a sense of humor to deal with this behavior. The nurse should help the parents understand that negativism is a normal part of a toddler's growth towards autonomy. Reacting with patience and humor can help diffuse the situation and maintain a positive relationship with the child. Reprimanding the child and giving a 'time out' (Choice A) may not be effective for addressing negativism and can lead to power struggles. Maintaining a permissive attitude (Choice B) may reinforce negative behavior. Asserting authority through limit setting (Choice D) may be necessary in some situations, but using patience and humor is a more effective initial approach for handling negativism.