Correct Answer: A

Rationale: The correct answer is A: Diabetes. Given the client's Native American ethnicity, high BMI, and vision changes, diabetes is the most crucial condition for the nurse to be aware of in the client's family history. Diabetes is strongly associated with vision problems, especially diabetic retinopathy. Glaucoma (choice B) is a condition that affects the optic nerve and can lead to vision loss but is not as directly linked to the client's BMI and ethnic background. Hypertension (choice C) can also impact vision, but in this case, diabetes takes precedence based on the client's profile. Brain tumor (choice D) is less likely to be related to the client's BMI, ethnicity, and vision changes compared to diabetes.

Correct Answer: D

Rationale: The correct answer is to identify myths and misconceptions prevailing in the community and their sources. This is the initial step in addressing misconceptions effectively. By understanding the specific myths and where they originate from, a health educator can tailor their approach to correct these misconceptions. Choice A is incorrect because while influential leaders can play a role, identifying myths comes first. Choice B is incorrect as selecting an approach should come after understanding the myths. Choice C is incorrect as deciding who will be involved in a conference is not the primary step in combating myths and misconceptions.

Correct Answer: B

Rationale: The correct answer is B: Hyponatremia. Lithium can lead to hyponatremia by affecting sodium balance in the body. Hypernatremia (Choice A) is unlikely with lithium use. Hyperglycemia (Choice C) and hypercalcemia (Choice D) are not typically associated with lithium therapy for bipolar disorder.

Correct Answer: D

Rationale: Health education is the correct term for the learning process that involves changing knowledge, attitudes, and practices to enhance health status. Choice A, 'Motivating,' is incorrect as it refers to inspiring action rather than the educational aspect. Choice B, 'Counseling,' focuses on providing guidance and support rather than specifically targeting knowledge and practice changes. Choice C, 'Disease prevention,' is related to strategies aimed at avoiding the occurrence of illnesses rather than the broader concept of educating for overall health improvement.

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.