Correct Answer: C

Rationale: Population-focused nursing practice involves identifying and addressing the health needs of a specific population group. Community diagnosis is a crucial process in population-focused nursing as it helps in understanding the health issues, concerns, and determinants within a community. Through community diagnosis, nurses can develop targeted interventions and strategies to promote the health and well-being of the population.

Correct Answer: B

Rationale: In community-based practice, healthcare providers deliver care to individuals in their natural environments, such as homes, schools, and workplaces. Conducting community diagnosis allows nurses to assess the specific needs and problems within the community, enabling them to tailor their services effectively and address the identified health concerns.

Correct Answer: A

Rationale: The primary purpose of conducting an epidemiologic investigation is to delineate the etiology of the epidemic, which involves identifying the cause or origin of the disease outbreak. This process helps in understanding how the disease spreads, its risk factors, and developing strategies for control and prevention.

Correct Answer: B

Rationale: Conducting a home visit provides an opportunity to conduct a firsthand appraisal of the home situation. This allows healthcare professionals to observe the living conditions, identify potential health hazards, and tailor care plans to the individual's environment. It helps in gaining a better understanding of the patient's lifestyle, social support, and resources available at home, leading to more personalized and effective care.

Correct Answer: C

Rationale: Population-focused nursing practice involves identifying and addressing the health needs of a specific population group. Community diagnosis is a crucial process in population-focused nursing as it helps in understanding the health issues, concerns, and determinants within a community. Through community diagnosis, nurses can develop targeted interventions and strategies to promote the health and well-being of the population.