Correct Answer: D

Rationale: The correct answer is D, all of the above. The Philippine Family Program aims to enhance and sustain proper spacing of pregnancies, proper timing of pregnancies, and reducing the number of pregnancies. These measures are essential for promoting maternal and child health, preventing complications, and ensuring better outcomes. Choices A, B, and C are all part of the comprehensive approach taken by the program to safeguard the well-being of families and contribute to overall public health.

Correct Answer: D

Rationale: Community health nurses play a vital role in promoting community health by providing health education to vulnerable populations (Choice A), coordinating access to integrated care for the population (Choice B), and developing comprehensive health care systems in various settings (Choice C). These contributions work together to enhance the overall health and well-being of the community, making choice D, 'all of the above,' the correct answer. Choices A, B, and C are all essential aspects of the multifaceted approach that community health nurses take to improve the health outcomes of the community.

Correct Answer: A

Rationale: Corrected Rationale: Chronic lead poisoning can lead to severe and irreversible damage to the central nervous system, including cognitive and developmental delays. Central nervous system damage is the most serious effect of chronic lead poisoning because it can have long-lasting consequences on a child's cognitive function and overall development. Moderate anemia (Choice B), renal tubule damage (Choice C), and growth impairment (Choice D) can also occur due to lead poisoning, but they are not as severe or potentially irreversible as the damage to the central nervous system.

Correct Answer: A

Rationale: The correct immediate action after recovering an avulsed tooth is to rinse it with water and place it back in the socket. This helps preserve the tooth and increases the chances of successful re-implantation. Placing the tooth in a clean plastic bag for transport to the dentist (choice B) is not ideal as immediate re-implantation is preferred. Holding the tooth by the roots until reaching the emergency room (choice C) can further damage the tooth. Asking the child to replace the tooth even if bleeding continues (choice D) is incorrect and may lead to improper re-implantation.

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.