Correct Answer: C

Rationale: The correct answer is C: health promotion. Health promotion activities involve maintaining a healthy lifestyle to prevent illness. In this scenario, the person is actively engaging in behaviors that promote their overall health and well-being, such as walking and following a healthy diet. Choice A, 'health balance,' is vague and does not specifically address the proactive nature of the person's actions. Choice B, 'disease prevention,' while related, focuses more on specific actions taken to prevent diseases rather than the broader concept of promoting overall health. Choice D, 'self-fulfillment,' does not directly relate to the activities described in the question.

Correct Answer: B

Rationale: Epidemiology is the study of the distribution and determinants of health-related states in populations. Choice A is incorrect because epidemiology focuses on more than just causes but also on distribution and determinants. Choice C is incorrect as it specifically relates to public health and not just treatment and prevention. Choice D is incorrect as epidemiology is broader than just focusing on the healthcare system and its effectiveness.

Correct Answer: B

Rationale: The correct answer is B: Documentation of skilled care services is required for Medicare reimbursement. Medicare reimbursement is based on the provision of skilled care services, not on prescriptions or preventative healthcare services. Including a copy of the client's health history and social security card is not a requirement for Medicare reimbursement.

Correct Answer: B

Rationale: The correct answer is B: Anemia. Zidovudine (Retrovir) can cause bone marrow suppression, leading to anemia. Monitoring for signs of anemia, such as fatigue, pallor, and shortness of breath, is crucial. Choice A, Hyperglycemia, is not a common adverse effect of zidovudine. Choice C, Hypertension, is not directly associated with zidovudine use. Choice D, Hypercalcemia, is also not a typical adverse effect of zidovudine.

Correct Answer: D

Rationale: The PPD (purified protein derivative) intradermal test is the standard screening method for detecting tuberculosis infection. It helps identify individuals who have been infected with Mycobacterium tuberculosis. A chest x-ray (Choice A) is used to assess the extent of active disease, not for screening purposes. Blood culture (Choice B) is not typically used for tuberculosis screening. Sputum culture (Choice C) is used to confirm active tuberculosis in symptomatic individuals, not for initial screening purposes.