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: 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: D

Rationale: Feelings of alienation or isolation are common triggers for suicidal behavior in adolescents. This sense of being disconnected or isolated from others can lead to despair and hopelessness, increasing the risk of suicidal ideation. Choices A, B, and C are less commonly associated with suicide in adolescents. Progressive failure to adapt may contribute to stress, but it is not typically the primary cause of suicide. Feelings of anger or hostility, while negative emotions, do not always lead to suicidal behavior in adolescents. Reunion wish or fantasy is not a recognized primary cause of suicide in this age group.

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: The correct answer is A: a newborn. Newborns are at the highest risk for HBV due to potential transmission from the mother. The hepatitis B virus can be transmitted from an infected mother to her baby during childbirth. Choices B, C, and D are incorrect because newborns have a higher risk due to this mode of transmission, making them more vulnerable compared to older children.