Correct Answer: C

Rationale: Surveying the employees about their smoking habits provides measurable data on program effectiveness. By collecting data directly from the employees through surveys, the occupational nurse can track changes in smoking habits, frequency, and quantity of cigarettes smoked. This direct feedback allows for a more accurate assessment of the program's impact on smoking cessation. Choices A and B rely on self-disclosure and may not provide reliable or objective data. Choice D does not directly measure changes in smoking habits but rather observes behavior in designated areas, which may not reflect overall smoking cessation progress.

Correct Answer: B

Rationale: The correct answer is B: Hepatitis B. The Hepatitis B vaccine is crucial for pregnant women as it helps prevent transmission of the virus to the baby during childbirth. Measles-mumps-rubella vaccine (choice A) is not directly related to the current situation of the client being pregnant. Human papillomavirus vaccine (choice C) is recommended for adolescents but is not specifically indicated in this case. Pneumococcal vaccine (choice D) is not a priority in this scenario compared to Hepatitis B, which is crucial for preventing vertical transmission.

Correct Answer: C

Rationale: The correct answer is C: 'health threat.' The new pregnancy poses a health threat due to the potential strain on resources and the existing issues with the children, such as underweight and being pale. Choice A is incorrect as it does not fully capture the potential risks associated with the new pregnancy. Choice B is also incorrect as it includes 'health deficit,' which is not explicitly mentioned in the scenario. Choice D, 'foreseeable crisis,' is not the most fitting description of the situation presented.

Correct Answer: B

Rationale: Prevalence is the correct answer as it refers to the number of existing cases of a disease in a specific population at a given time. Incidence, on the other hand, refers to the number of new cases of a disease in a defined population over a specific period. Mortality rate is the measure of the number of deaths in a particular population due to a specific cause, while morbidity rate is the frequency of a disease in a specific population.

Correct Answer: B

Rationale: Occupational health nursing focuses on educating workers about health, promoting health through appropriate and effective ways, and planning and administering health services in the workplace. Immediate diagnosis of illness prevailing in the work field is typically not the primary role of occupational health nursing, as it usually involves prevention, education, and health promotion rather than diagnosing acute conditions.