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ВходOccupational health module 10-semester. 1st patok.
Список вопросов теста
Вопрос 1
Occupational skin conditions:
Варианты ответов
- Are usually easy to distinguish from skin conditions triggered outside of work
- The most common is contact allergic dermatitis
- Are an uncommon presentation to an occupational health physician
- Health surveillance should be seriously considered when detected in a worker
Вопрос 2
Which of the following is not a factor which may affect an individual's risk of developing hand arm vibration syndrome from exposure to hand transmitted vibration from a given source include:
Варианты ответов
- Grip force
- Arm posture
- Frequency of exposure
- Presence of noise induced hearing loss
Вопрос 3
A 43-year old male teacher is referred by his employer as he has been out of work for 4 weeks with voice loss. He is a smoker. He teaches adults in a private language school. He feels well otherwise and is anxious to return to work. He feels that he can perform his job effectively using mainly visual aids. Your next action should be:
Варианты ответов
- To recommend a return to work with modifications including use of visual aids
- To recommend against a return to work
- To recommend that he leave his role as a teacher as his voice loss is likely to be a recurring problem
- To recommend that he see an ear, nose and throat specialist to evaluate the cause of his hoarseness
Вопрос 4
With regard to asbestos:
Варианты ответов
- It is a man-made fibre
- Asbestos-related pleural plaques are usually associated with a restrictive pattern on pulmonary function tests
- Exposure increases the risks of all types of lung cancer
- Asbestos-related benign pleural effusion usually develops after at least 25 years of exposure
Вопрос 5
The most common musculoskeletal disorder in farmers is:
Варианты ответов
- Work related upper limb disorder
- Carpal tunnel syndrome
- De Quervain's tenosynovitis
- Low-back disorders
Вопрос 6
The following occupations are listed as group 1 carcinogens by the International Agency for Research on Cancer:
Варианты ответов
- Coal miner
- Occupational exposure as a painter
- Foundry worker
- Radiographer
Вопрос 7
Increased risk of systemic sclerosis is associated with:
Варианты ответов
- Asbestos
- Silicone breast implants
- Air pollution
- Silica
Вопрос 8
As regards ultraviolet radiation:
Варианты ответов
- Il three types (UVA, UVB and UVC) reach the earth from the sun
- UVC is the only type of ultraviolet radiation that causes skin cancer
- The majority of ultraviolet radiation from the sun is composed of UVA
- UVB is seen as the safest type of ultraviolet radiation
Вопрос 9
As regards hand arm vibration syndrome:
Варианты ответов
- The vascular symptoms have a shorter latency period than the neurosensory symptoms
- Where vibration exposure limit values are exceeded health surveillance should be conducted
- Health surveillance questionnaires may be useful in workers at risk of hand arm vibration syndrome
- The symptoms always improve after removal of the vibration exposure
Вопрос 10
With regard to general health checks (health checks in asymptomatic individuals):
Варианты ответов
- They have been found to reduce incidence of ischaemic heart disease but not stroke
- They have been found to reduce incidence of stroke but not ischaemic heart disease
- They have not been found to have a beneficial effect on stroke or ischaemic heart disease
- Have not been found to improve surrogate markers such as lipid profiles or blood pressure control
Вопрос 11
With regarding to lighting at work, which of the following statements is incorrect:
Варианты ответов
- Poor lighting in a workplace may lead to musculoskeletal disorders
- Seizures can be triggered if lighting flicker is of a frequency of 5-30 Hz
- Monochromatic light sources should be used in situations where colour discrimination is important
- Tungsten halogen lamps may emit ultraviolet light
Вопрос 12
Noise induced-hearing loss:
Варианты ответов
- Occurs due to damage to the tympanic membrane
- Occurs due to damage to the external ear canal
- Occurs due to damage to the Eustachian tube
- Occurs due to damage to the hair cells and cilia of the cochlea
Вопрос 13
A 45-year old welder often feels feverish on a Monday evening with myalgia, cough and mild shortness of breath. His symptoms tend to improve by Wednesday but then may recur on his return to work the following Monday. He is a smoker and had attributed the symptoms to cigarettes but his wife is worried. He has no haemoptysis or weight loss. His symptoms are most likely due to:
Варианты ответов
- Lung cancer
- Lower respiratory tract infection
- Metal time fever
- Polymer fever
Вопрос 14
With regard to ionizing radiation :
Варианты ответов
- All forms of ionizing radiation cause equal amounts of tissue damage for a given dose
- All tissues are affected equally for a given dose of radiation
- The unit used to measure the amount of radiation per unit of mass is the gray and 1Gy is equal to 1J/kg
- The rate of transformation of a radioactive material is measured in sieverts
Вопрос 15
Allergic contact dermatitis:
Варианты ответов
- Is usually clinically distinguishable from irritant contact dermatitis
- It takes hundreds of exposures to a sensitizer for a skin rash to develop
- Requires a very concentrated dose of sensitizer to elicit a rash once a person is sensitized
- Can be diagnosed with patch testing
Вопрос 16
Organophosphate pesticides:
Варианты ответов
- Act by enhancing acetylcholinesterase at neural junctions
- Organophosphate poisoning can be diagnosed by laboratory analysis
- Organophosphate poisoning is more common in the developed than the developing world
- Can cause peripheral neuropathy
Вопрос 17
When controlling for a chemical hazard, which of the following would take initial priority on a control hierarchy:
Варианты ответов
- Replace the hazardous substance with a less hazardous one
- Remove the hazardous substance entirely from the process
- Ensure adequate ventilation of the work area to reduce exposure
- Ensure workers wear sufficient protective equipment
Вопрос 18
Occupational laryngeal cancer may be caused by:
Варианты ответов
- Polycyclic aromatic hydrocarbons
- Engine exhaust
- Textile dust
- Asbestos
Вопрос 19
With regard to nurses doing night work, which of the following are not associated with increased risk of sleep disorders:
Варианты ответов
- Less nursing experience
- Shorter duration of recovery between shifts
- Increased number of consecutive night shifts
- Female gender
Вопрос 20
Health surveillance with periodic chest x-ray is recommended in:
Варианты ответов
- Those who work in coal mines
- Those with asbestos exposure above the recommended occupational exposure level
- Cotton factory workers
- farmers exposed to hay and grains
Вопрос 21
Silicosis:
Варианты ответов
- Never progresses to progressive massive fibrosis
- Is always radiologically indistinguishable from coal workers' pneumoconiosis
- Has no association with lung cancer
- Is associated with an increased risk of tuberculosis
Вопрос 22
Shift work sleep disorder:
Варианты ответов
- Occurs when sleep/wake problems associated with shift work occur for a period of more than three months and is an internationally classified sleep disorder
- Has a prevalence of 80% in shift workers
- Is associated with reduced risk of type 2 diabetes
- Is conclusively associated with a shorter life
Вопрос 23
Hand arm vibration syndrome:
Варианты ответов
- When severe may affect a worker with simple tasks such as dressing
- Always improves upon ceasing vibration exposure
- Tends to affect the thumbs more than other fingers
- All of the above
Вопрос 24
Haemolytic anaemia occurs in acute poisoning due to:
Варианты ответов
- Sarin gas
- Cyanide poisoning
- Arsine gas
- Carbon monoxide
Вопрос 25
Which of the following is the most useful screening test to detect congenital vision deficiency:
Варианты ответов
- Farnsworth lantern test
- Fanrars test
- Ishihara's test
- Farnsworth - Munsell 100 Hue test
Вопрос 26
Berylliosis:
Варианты ответов
- is common in miners
- In the acute phase it is usually a benign condition
- Has similar radiological features to sarcoidosis
- Has no role for steroids in its treatment
Вопрос 27
The haematological malignancy that has the strongest causal association with benzene is:
Варианты ответов
- Acute myeloid leukaemia
- Acute lymphoblastic leukaemia
- Chronic myeloid leukaemia
- Chronic lymphocytic leukaemia
Вопрос 28
Airborne fibres are felt to be generally respirable if they are less than:
Варианты ответов
- 3 micrometres
- 5 micrometres
- 8 micrometres
- 10 micrometres
Вопрос 29
Temporary threshold shift:
Варианты ответов
- Is always irreversible
- Usually lasts for at least one week
- Is considered permanent if it lasts for more than one week
- Needs to be considered when planning audiometry
Вопрос 30
With regard to congenital colour vision deficiency:
Варианты ответов
- Prevalence can be as high as 20% of males
- Congenital colour vision deficiency occurs due to genetic abnormalities leading to abnormal function of rod photoreceptors
- The most common acquired colour vision deficiencies are autosomal recessive
- Glaucoma may lead to colour vision deficiency
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