Correct Answer: D

Rationale: Following cast application for congenital clubfoot in a 2-month-old child, the priority nursing goal should be to maintain tissue perfusion. This is crucial to prevent complications like compartment syndrome and ensure proper healing. While managing pain, relieving muscle spasms, and promoting mobility are important aspects of care, they are secondary to ensuring adequate tissue perfusion in this scenario.

Correct Answer: D

Rationale: Children with AIDS often experience delays in achieving developmental milestones, affecting their overall growth and development. This delay can impact various areas of development, not limited to a specific aspect like musculoskeletal or speech development. While some children may achieve milestones at varying rates (choice A), the general trend is a delay in multiple milestones (choice D). Musculoskeletal development (choice B) and speech development (choice C) may be affected but are not as comprehensive as the delay in most developmental milestones.

Correct Answer: C

Rationale: The correct first action for the community health RN to take in this situation is to review current epidemiological population data that might document a low immunization rate. By doing so, the RN can gather evidence to support further intervention strategies. Option A is incorrect because taking a health history would not provide immediate data on immunization rates in the community. Option B is incorrect as initiating an immunization program without confirming the actual immunization rates may not address the specific needs of the community. Option D is incorrect as a blanket referral without assessing the situation may not be the most effective first step.

Correct Answer: B

Rationale: The correct answer is B: Insertion of a chest tube. In a case of spontaneous pneumothorax, the primary intervention is to insert a chest tube. This procedure allows the trapped air to escape from the pleural space, relieving pressure and enabling the lung to re-expand. Choices A, C, and D are not the initial interventions for spontaneous pneumothorax. Cardiopulmonary resuscitation is indicated for cardiac arrest, oxygen therapy may provide supportive care but does not address the underlying issue of trapped air in the pleural space, and assisted ventilation may be needed later but is not the first-line treatment for a pneumothorax.

Correct Answer: C

Rationale: The correct answer is C: Diarrhea. Ranitidine, which is used to treat peptic ulcer disease, can lead to gastrointestinal disturbances such as diarrhea. Choices A, B, and D are incorrect. Hypertension and hypotension are not common side effects of ranitidine. Constipation is also not a typical side effect associated with ranitidine use.