Correct Answer: A

Rationale: Corrected Rationale: Epidemiology is the study of the distribution and determinants of health-related states or events in specified populations and the application of this study to the control of health problems. It focuses on identifying and understanding the factors that influence the occurrence and distribution of diseases, defects, disability, or death of groups of individuals. Therefore, the correct answer is A. Choice B, vital health statistics, is not the primary focus of epidemiology. While vital health statistics may be used in epidemiological studies, it is not the direct concern of epidemiology. Choice C, environmental sanitation, although important for public health, is not the main focus of epidemiology. Epidemiology is more concerned with the factors influencing disease occurrence and distribution, rather than environmental sanitation. Choice D, treatment of a communicable disease, is more related to clinical medicine rather than epidemiology. Epidemiology is more focused on prevention, control, and understanding the patterns and causes of diseases rather than their treatment.

Correct Answer: A

Rationale: The correct answer is Bayabas (guava) leaves. Guava leaves are known for their anti-diarrheal properties, which can help alleviate Joseph's condition. Pancit pacitan, Sambong, and Lagundi are not commonly used for treating diarrhea and do not possess the same anti-diarrheal properties as guava leaves.

Correct Answer: C

Rationale: The correct answer is C, 'Reducing the impact of an ongoing illness.' Tertiary prevention aims to minimize the effects of a disease or condition that is already established. Choices A, 'Preventing the onset of disease,' and B, 'Early detection and treatment,' are aspects of primary and secondary prevention, respectively. Choice D, 'Health education,' is more related to promoting awareness and knowledge rather than specifically focusing on reducing the impact of an ongoing illness.

Correct Answer: A

Rationale: To effectively plan and implement an occupational health program, the nurse needs comprehensive data, including disease trends, birth and death rates, and social environmental conditions. This holistic approach ensures that the program addresses a wide range of health aspects impacting the target population. Option A is the correct choice as it considers multiple factors influencing occupational health. Choices B, C, and D are each individually important but do not provide the breadth of information required to establish priorities in a comprehensive occupational health program.

Correct Answer: A

Rationale: Corrected Rationale: Epidemiology is the study of the distribution and determinants of health-related states or events in specified populations and the application of this study to the control of health problems. It focuses on identifying and understanding the factors that influence the occurrence and distribution of diseases, defects, disability, or death of groups of individuals. Therefore, the correct answer is A. Choice B, vital health statistics, is not the primary focus of epidemiology. While vital health statistics may be used in epidemiological studies, it is not the direct concern of epidemiology. Choice C, environmental sanitation, although important for public health, is not the main focus of epidemiology. Epidemiology is more concerned with the factors influencing disease occurrence and distribution, rather than environmental sanitation. Choice D, treatment of a communicable disease, is more related to clinical medicine rather than epidemiology. Epidemiology is more focused on prevention, control, and understanding the patterns and causes of diseases rather than their treatment.