Correct Answer: D

Rationale: To be effective as an occupational health nurse, having knowledge and skills in public health science, the research process, interviewing and counseling, and oral and written communication are all important. However, communication skills, both oral and written, are crucial for conveying information, educating employees, documenting findings, and collaborating with other healthcare professionals. While public health science, research process, interviewing, and counseling are essential, oral and written communication is fundamental for effective communication and coordination in the workplace, making it the most critical skill for an occupational health nurse.

Correct Answer: C

Rationale: The correct answer is C. A CD4 count less than 200 cells/mm³ is a diagnostic criterion for AIDS. Choices A, B, and D are incorrect. Choice A is vague and does not reflect the diagnostic criteria for AIDS. Choice B is not accurate, as the presence of opportunistic infections, not their absence, is indicative of AIDS. Choice D is unrelated to the diagnosis of AIDS in adults.

Correct Answer: A

Rationale: The correct answer is A. Providing nicotine replacement therapy is a key component of smoking cessation programs as it helps individuals manage nicotine withdrawal symptoms. Nicotine replacement therapy includes options like nicotine gum, patches, lozenges, or inhalers. Choice B, offering surgical interventions, is incorrect as smoking cessation programs primarily focus on behavioral and pharmacological interventions rather than surgical procedures. Choice C, conducting regular health screenings, is also incorrect as it is not a direct key component of smoking cessation programs. Choice D, promoting alcohol consumption, is not only incorrect but counterproductive, as it can be detrimental to overall health and hinder smoking cessation efforts.

Correct Answer: C

Rationale: The correct answer is C: Tachycardia. Albuterol can cause tachycardia as a side effect due to its stimulant effect on the heart. It acts as a beta-2 adrenergic agonist, leading to increased heart rate. Hypoglycemia (choice A) is not a common side effect of albuterol. Hyperkalemia (choice B) is also not typically associated with albuterol use. Hypotension (choice D) is less likely to occur as albuterol usually causes tachycardia rather than hypotension.

Correct Answer: B

Rationale: The correct answer is B: "Reduce acid secretion." Vagotomy is performed to reduce acid secretion by cutting the vagus nerve, which stimulates acid production. Choices A, C, and D are incorrect. A vagotomy does not increase acid secretion, promote gastric emptying, or remove the ulcerated area. It specifically aims to decrease acid production to help in the healing of peptic ulcers.