Correct Answer: D

Rationale: The correct answer is D, smoking cessation. Smoking is a major and modifiable risk factor for cardiovascular disease. It is often the highest priority in cardiac risk reduction because stopping smoking has immediate and long-term benefits for heart health. Choices A, B, and C are also important in reducing cardiac risk factors, but smoking cessation takes precedence due to its significant impact on cardiovascular health.

Correct Answer: C

Rationale: Establishing rapport with the family is crucial in the initial stages of a home visit. It helps build trust, open communication channels, and allows the nurse to gain insight into the family's health needs and concerns. Developing a care plan (Choice A) comes after the assessment phase, where information is gathered. Conducting a physical examination (Choice B) is a part of the assessment but typically follows establishing rapport. Providing health education (Choice D) is important but usually occurs after the assessment and care planning stages.

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.

Correct Answer: A

Rationale: The correct answer is A. The statement "I'm feeling really isolated from everyone and scared" indicates a sense of separation from society and helplessness. This choice reflects feelings of loneliness and fear, which are common among individuals who feel disconnected and helpless. Choices B, C, and D do not directly convey a sense of isolation and helplessness. Choice B focuses on food insecurity, choice C on a resigned attitude towards poverty, and choice D on lack of respect, none of which directly address the feelings of being separated from society and helpless as indicated in the scenario.