Occupational Health Practice Test

Question 1. A worker in a manufacturing facility reports gradually worsening hearing difficulty after several years around loud machinery. Which workplace assessment would be most appropriate for determining the potential occupational risk?

A. Measure workplace noise levels and review the worker’s exposure history.

B. Evaluate the worker’s dietary intake.

C. Measure the worker’s blood glucose level.

D. Assess the worker’s visual acuity only.

Correct Answer. A. Measure workplace noise levels and review the worker’s exposure history.

Explanation: Occupational hearing loss is commonly associated with repeated exposure to excessive workplace noise. Evaluating the actual noise level in the work environment and reviewing the worker’s duration, frequency, and pattern of exposure can help determine whether occupational noise is a likely risk factor. The assessment may also consider the worker’s use of hearing protection and available audiometric results. Blood glucose, diet, and visual acuity do not directly establish the worker’s noise exposure. Identifying the source and extent of exposure is important because reducing workplace noise or improving protective measures can help prevent further hearing damage among exposed employees.

Question 2. A laboratory worker accidentally splashes a potentially infectious specimen into the eyes. What should the worker do immediately?

A. Finish the current task before reporting the incident.

B. Rinse the eyes promptly with water or an appropriate eyewash solution.

C. Cover the eyes with a dry dressing.

D. Apply an alcohol-based disinfectant directly to the eyes.

Correct Answer. B. Rinse the eyes promptly with water or an appropriate eyewash solution.

Explanation: An occupational exposure involving the eyes requires immediate flushing to reduce contact time with potentially infectious material. The worker should use an eyewash station or clean water and follow the organization’s exposure-control procedure. The incident should then be reported promptly so that the appropriate occupational health evaluation and follow-up can occur. Waiting until the task is finished unnecessarily prolongs exposure. Alcohol-based products should not be applied directly to the eyes because they can cause additional tissue injury. Immediate first aid, followed by timely reporting and professional assessment, is an important part of managing workplace exposure to potentially infectious materials.

Question 3. A warehouse employee repeatedly develops lower-back discomfort while lifting heavy boxes from floor level. Which intervention would best address the workplace risk?

A. Increase the number of boxes lifted during each shift.

B. Redesign the task to reduce awkward lifting and provide appropriate mechanical assistance.

C. Require the employee to work faster.

D. Tell the employee to ignore discomfort unless an injury occurs.

Correct Answer. B. Redesign the task to reduce awkward lifting and provide appropriate mechanical assistance.

Explanation: Repeated lifting from floor level can place considerable stress on the lower back, particularly when loads are heavy, frequent, or handled with awkward postures. An ergonomic intervention should examine the task itself and identify ways to reduce the physical demand. Raising storage areas, reducing load size, improving workflow, or using mechanical lifting equipment may reduce exposure to the hazard. Simply telling the worker to lift faster does not address the underlying risk. Ignoring discomfort may allow a preventable problem to worsen. Effective occupational health practice focuses on modifying the work environment and task demands rather than relying solely on individual behavior.

Question 4. An employee works with a solvent that can be absorbed through the skin. Which measure should be prioritized when developing a workplace exposure-control strategy?

A. Replace the solvent with a less hazardous substance when feasible.

B. Provide employees with a larger break room.

C. Increase the temperature of the work area.

D. Encourage employees to work without gloves.

Correct Answer. A. Replace the solvent with a less hazardous substance when feasible.

Explanation: Substitution is an important approach in the hierarchy of controls because replacing a hazardous substance with a safer alternative can reduce exposure at its source. Unlike personal protective equipment, substitution does not depend entirely on workers consistently using protective gear correctly. If replacement is not feasible, other controls such as engineering measures, safe work procedures, appropriate protective equipment, and exposure monitoring may be considered. Increasing temperature could potentially increase vapor exposure for some substances, while eliminating protective gloves would increase skin contact. Occupational health programs should therefore seek to control hazards as close to their source as reasonably possible.

Question 5. A nurse is reviewing an employee’s occupational health record and notices repeated respiratory symptoms that occur primarily during work shifts and improve during extended time away from the workplace. What should the nurse consider?

A. A possible relationship between workplace exposure and symptoms.

B. Proof that the symptoms are unrelated to employment.

C. Evidence that the employee should permanently stop all physical activity.

D. A normal response that requires no further assessment.

Correct Answer. A. A possible relationship between workplace exposure and symptoms.

Explanation: Symptoms that repeatedly appear during workplace exposure and improve when the employee is away from work may suggest a possible occupational relationship. This pattern does not by itself establish a diagnosis or prove that the workplace caused the condition, but it warrants further assessment. The occupational health professional may review the employee’s job duties, substances encountered, ventilation, protective equipment, symptom timing, medical history, and other potential causes. Identifying patterns of symptoms in relation to work is an important part of occupational health surveillance. Appropriate evaluation can help determine whether additional exposure controls or medical follow-up are needed.

Question 6. A company wants to reduce injuries caused by employees repeatedly performing the same wrist movement throughout an eight-hour shift. Which approach is most appropriate?

A. Increase the repetition rate to shorten the shift.

B. Evaluate the task and introduce ergonomic changes, task variation, or appropriate work-rest periods.

C. Remove all training related to the task.

D. Require employees to continue the same movement without breaks.

Correct Answer. B. Evaluate the task and introduce ergonomic changes, task variation, or appropriate work-rest periods.

Explanation: Repetitive movements can contribute to work-related musculoskeletal disorders, particularly when combined with forceful exertion, awkward posture, or insufficient recovery time. An ergonomic assessment can identify opportunities to redesign tools, workstation height, movement patterns, or production processes. Task rotation or variation and appropriately planned recovery periods may also reduce repetitive exposure when implemented correctly. Increasing repetition or removing breaks would generally increase the physical demand placed on workers. Training remains important, but education alone may not adequately control a hazard that is built into the design of the job. Effective prevention should address the work process as well as individual worker practices.

Question 7. During an occupational health inspection, a workplace is found to have a hazardous machine with an exposed moving component. Which control would provide the strongest protection?

A. Place a warning poster beside the machine.

B. Tell employees to be more careful.

C. Install an appropriate machine guard that prevents access to the moving component.

D. Provide employees with additional paperwork.

Correct Answer. C. Install an appropriate machine guard that prevents access to the moving component.

Explanation: An engineering control changes the physical environment to reduce or eliminate exposure to a hazard. Installing a properly designed machine guard can prevent workers from coming into contact with dangerous moving parts and therefore provides more reliable protection than warnings or verbal instructions alone. Posters and training can support safe behavior, but they depend on employees consistently recognizing and responding correctly to the hazard. Engineering controls are generally preferred because they do not rely solely on individual attention or compliance. The guard must be appropriately designed, maintained, and compatible with safe machine operation. Workplace hazards should be controlled at their source whenever practical.

Question 8. An occupational health professional is designing a vaccination program for employees who may be exposed to a vaccine-preventable infectious disease at work. What should be considered first?

A. The employees’ job-related exposure risk and applicable vaccination recommendations.

B. Whether employees prefer a different workplace uniform.

C. The company’s advertising budget.

D. The number of employees who work remotely.

Correct Answer. A. The employees’ job-related exposure risk and applicable vaccination recommendations.

Explanation: Workplace vaccination programs should be based on the infectious hazards associated with specific job duties and the recommendations applicable to the occupational setting. The occupational health professional should consider the type and likelihood of exposure, employee roles, relevant public health guidance, vaccine indications, contraindications, and organizational policies. A vaccination program should also include appropriate education and documentation processes. Personal preferences may be relevant to communication and implementation, but they do not replace risk assessment or clinical guidance. Remote employees may have different exposure patterns, but the primary consideration is the actual occupational risk and the preventive measures appropriate for that risk.

Question 9. An employee reports significant stress, difficulty sleeping, and declining concentration after months of excessive workload and insufficient recovery time. Which occupational health response is most appropriate?

A. Assume the problem is unrelated to the workplace.

B. Assess workplace factors and consider appropriate organizational and individual interventions.

C. Increase the employee’s workload to improve productivity.

D. Advise the employee to ignore the symptoms.

Correct Answer. B. Assess workplace factors and consider appropriate organizational and individual interventions.

Explanation: Occupational health recognizes that workplace conditions can influence psychological well-being as well as physical health. Excessive workload, inadequate recovery time, low control, poor organizational support, and other psychosocial factors may contribute to significant work-related stress. An appropriate response includes assessing the employee’s concerns while also examining workplace conditions that may be contributing to the problem. Depending on the circumstances, interventions may involve workload adjustments, improved scheduling, organizational changes, supportive resources, or referral for professional care. Simply telling an employee to ignore symptoms does not address the underlying concern and may allow stress-related problems to become more severe.

Question 10. A worker has been absent after a work-related musculoskeletal injury and is preparing to return to employment. Which approach best supports a safe return-to-work process?

A. Require the worker to immediately resume all previous duties without assessment.

B. Ignore any restrictions provided by the healthcare professional.

C. Match work duties to the worker’s current functional abilities and documented restrictions.

D. Permanently remove the worker from all occupational activities.

Correct Answer. C. Match work duties to the worker’s current functional abilities and documented restrictions.

Explanation: A safe return-to-work process should consider the worker’s current functional abilities, medical recommendations, job demands, and any documented restrictions. Appropriate communication among the worker, healthcare professionals, employer, and occupational health team can help identify suitable duties and determine whether temporary modifications are needed. Immediately assigning unrestricted duties may increase the risk of reinjury if the worker has not fully recovered. Conversely, permanently removing a worker from occupational activity may be unnecessary when modified duties are possible. Return-to-work planning should be individualized, monitored over time, and adjusted as the worker’s functional capacity changes during recovery.