Occupational Health Practice Questions

Q: Inhalation of sugarcane dust could cause

Bagassosis. ***Bagassosis (Correct Answer)*** - **Bagassosis** is a form of **extrinsic allergic alveolitis (hypersensitivity pneumonitis)** specifically caused by inhaling dust from **bagasse**, the fibrous residue left after crushing sugarcane. - The causative agents are **thermophilic actinomycetes** (*Thermoactinomyces sacchari* and *T. vulgaris*) that grow in stored, moldy bagasse. - This is an **occupational lung disease** seen in workers in sugarcane processing industries. *Farmer's Lung (Incorrect)* - This is also a form of **extrinsic allergic alveolitis** but is caused by inhaling dust from **moldy hay**, not sugarcane. - The allergens are thermophilic actinomycetes found in agricultural hay and grain, such as *Micropolyspora faeni* and *Thermoactinomyces vulgaris*. - Occurs in agricultural workers, not sugarcane industry workers. *Tobacosis (Incorrect)* - **Tobacosis** refers to lung disease associated with exposure to **tobacco dust**, affecting workers in tobacco processing industries. - It is distinct from conditions caused by sugarcane dust exposure. *Byssinosis (Incorrect)* - Also known as **"brown lung disease"**, byssinosis is an occupational lung disease caused by inhaling dust from **cotton, flax, or hemp**. - Characteristically presents with symptoms that worsen on the **first day back to work** after a weekend break (Monday fever). - Not related to sugarcane dust exposure.

Q: The size of Respirable dust is -

1-5 microns. ***1-5 microns*** - **Respirable dust** refers to particles tiny enough to penetrate the deepest parts of the lungs, specifically the **alveoli**. - Particles within the **1-5 micron** range are considered most effective at reaching these deep lung regions, posing significant health risks. *5-10 microns* - Particles in this range are generally considered **thoracic dust**, which can reach the lower airways and bronchi. - While they can cause respiratory issues, they are less likely to penetrate to the **alveolar level** compared to respirable dust. *20 microns* - Particles of **20 microns** are typically too large to be considered respirable dust. - They are mostly deposited in the **upper respiratory tract** (nose and throat) and cleared by mucociliary action, rarely reaching the deeper lungs. *15 microns* - Similar to 20-micron particles, **15-micron** dust particles are largely deposited in the upper airways. - They are generally too large to effectively penetrate into the **alveoli** and thus are not classified as respirable dust.

Q: A 45-year-old man who works in a textile company visited hospital for routine health check-up. He prepares dyes in the company for the last 18 years. Which of the following investigation would you recommend for this patient?

Urine examination. ***Urine examination*** - Working in a textile company, especially with dyes, for 18 years significantly increases the risk of exposure to **aromatic amines**, which are established occupational carcinogens. - Exposure to **aromatic amines** is strongly linked to an increased risk of **bladder cancer**, making a periodic urine examination, including cytology, crucial for early detection. *Pulmonary function tests* - While textile workers can be exposed to **fibers and dusts** causing respiratory issues like byssinosis, the primary and most concerning risk associated with **dye exposure** is bladder cancer, not lung function impairment. - PFTs would be more relevant if there were specific respiratory symptoms or exposure to known **pneumoconiosis-causing contaminants**. *Complete blood count* - A CBC might detect hematological abnormalities, but it is not the most targeted or sensitive investigation for early detection of **dye-related occupational diseases**, particularly bladder cancer. - While some chemicals can affect blood cell production, the prominent carcinogenic risk here points elsewhere. *Liver function tests* - Some industrial chemicals can cause **liver toxicity**, but the most prominent and direct organ-specific cancer risk associated with long-term exposure to textile dyes containing aromatic amines is to the bladder. - LFTs would be relevant if there were signs or symptoms of **hepatic dysfunction**, but they don't address the primary cancer risk in this scenario.

Q: As per the Factory Act, the maximum working hours per week is:

48 hours. ***48 hours*** - The Factory Act, 1948, stipulates that no adult worker shall be required or allowed to work in a factory for more than **forty-eight hours in any week**. - This limit is put in place to ensure workers' safety and health, preventing excessive fatigue and promoting a reasonable work-life balance. *42 hours* - This is below the maximum limit set by the Factory Act and is not the legally prescribed maximum. - While some industries or specific roles might have lower working hours, the Act's upper limit is not 42 hours. *35 hours* - This is significantly lower than the legal maximum working hours and is generally encountered in part-time work or specific contractual agreements, not as a general maximum under the Factory Act. - Such low hours are not the standard set for full-time employment by the Act. *56 hours* - Working 56 hours per week would exceed the maximum limit permitted by the Factory Act, 1948. - Exceeding 48 hours would require specific provisions for overtime work, which is strictly regulated and not the standard maximum.

Q: A factory of 30 persons has monthly wage bill of Rs 30,000. According to ESI Act, what amount will the employer pay as ESI contribution every month?

975 Rs. ***975 Rs*** - As per the **Employees' State Insurance (ESI) Act** (current rates effective from July 2019), the employer's contribution rate is **3.25% of the total wages** paid. - For a monthly wage bill of Rs 30,000, the employer's ESI contribution would be 3.25% of 30,000 = **Rs 975**. - The total ESI contribution (employer + employee) is **4.00%**, with employer paying 3.25% and employee paying 0.75%. *1425 Rs* - This value was based on the **old employer contribution rate of 4.75%** (before July 2019). - The current rate is **3.25%**, making this amount incorrect under the present ESI Act provisions. *5000 Rs* - This value is significantly higher than the statutory employer contribution rate under the **ESI Act**. - It represents approximately **16.67%** of wages, which is far above the actual rate. *2000 Rs* - This amount exceeds the standard **3.25% employer contribution** specified by the ESI Act. - It represents approximately **6.67%** of the monthly wage bill, which does not align with current statutory rates.

Q: Mesothelioma is closely associated with which of the following?

Asbestosis. ***Asbestosis*** - Mesothelioma is a rare but aggressive cancer of the **pleura** or **peritoneum**, and its strongest known etiological link is with **asbestos exposure**. - Asbestos fibers can become lodged in the lungs and pleural lining, leading to chronic inflammation, DNA damage, and eventually oncogenic transformation. *Silicosis* - **Silicosis** is a lung disease caused by inhaling **crystalline silica dust**, primarily affecting miners, construction workers, and foundry workers. - While it can lead to pulmonary fibrosis and an increased risk of tuberculosis and lung cancer, it is not directly associated with mesothelioma. *Anthracosis* - **Anthracosis** is often seen in coal miners and urban dwellers due to the inhalation of **carbon dust**, leading to the accumulation of pigment in the lungs. - This condition is generally benign but can contribute to the development of **coal worker's pneumoconiosis**, which is distinct from mesothelioma. *Byssinosis* - **Byssinosis** is an occupational lung disease caused by the inhalation of **cotton dust** or other textile dusts, typically affecting textile workers. - Symptoms include chest tightness and shortness of breath, particularly after beginning work after a break, and it is unrelated to mesothelioma.

Q: What is the recommended frequency for periodic health examination of radiation workers according to AERB guidelines?

Every year. ***Every year*** - According to **AERB (Atomic Energy Regulatory Board) Safety Code SC/MED-2**, **periodic health examinations** for radiation workers are recommended **at least once annually** (every year). - This is the **standard frequency** for routine monitoring of Category B radiation workers and those in normal working conditions. - Annual examinations provide adequate surveillance for early detection of health effects while being practical and cost-effective. - **More frequent examinations** (every 6 months) may be required for **special circumstances**: Category A workers (high exposure), workers above 50 years, or following exposure incidents. *Every 6 months* - This frequency is **not the standard** routine requirement but applies to **special categories** only. - Six-monthly examinations are recommended for **Category A workers** (those likely to receive higher doses) or workers over 50 years of age. - Implementing this for all radiation workers would be unnecessarily frequent and resource-intensive. *Every month* - This frequency is **excessively frequent** and not stipulated by AERB for routine monitoring. - Monthly checks are reserved for **acute exposure incidents** or specific medical management situations requiring close follow-up. *Every 2 months* - This frequency is **not mentioned** in AERB guidelines and represents no standard practice. - It would impose unnecessary burden without evidence-based benefits over the recommended annual interval.

Q: The extended sickness benefit is given for:

365 days. ***365 days (approximately 1 year)*** - The **Extended Sickness Benefit (ESB)** under the ESI Act is provided for **34 specified long-term diseases** for up to **2 years (730 days)** beyond the regular sickness benefit period. - Among the given options, **365 days** is the closest approximation to the extended benefit duration, representing roughly **1 year** of the maximum 2-year benefit period. - ESB is granted for conditions like **tuberculosis, leprosy, mental illness, cancer, chronic renal failure**, and other specified chronic conditions requiring prolonged treatment. *124 days* - This duration is **not the standard period** for Extended Sickness Benefit under ESI. - This may be confused with **Enhanced Sickness Benefit** for certain maternity-related conditions, which is a different provision. - The ESB for long-term illnesses extends for a **much longer duration** (up to 2 years). *91 days* - This is the duration for the **regular/standard sickness benefit**, not the extended sickness benefit. - Regular sickness benefit is provided at **70% of wages** for up to 91 days in any two consecutive benefit periods. - The **Extended Sickness Benefit is granted after** exhaustion of regular sickness benefit for specified chronic diseases. *182 days* - This represents approximately **6 months** but is not the correct duration for Extended Sickness Benefit. - The ESB under ESI Act provisions extends for up to **2 years (730 days)** for the 34 specified long-term illnesses. - This option **underestimates** the actual extended benefit period available to insured persons.

Q: A 30-year-old male works in a factory where he is exposed to dust. What is the most appropriate primary prevention measure for occupational lung disease?

Use of respiratory protective equipment. ***Use of respiratory protective equipment*** - This is a **primary prevention** measure as it directly **prevents exposure** to harmful dust in the workplace, thereby averting the development of occupational lung disease. - By creating a physical barrier, **respiratory protective equipment (RPE)** minimizes the inhalation of particulate matter that could otherwise lead to cough, shortness of breath, and long-term respiratory damage. *Regular medical check-ups* - While important for **early detection** and monitoring, regular medical check-ups fall under **secondary prevention**, as they aim to identify conditions once they have started or to monitor progression. - They do not prevent the initial exposure or the onset of the disease itself. *Medications for symptoms* - Providing medications for symptoms like cough and shortness of breath is a form of **tertiary prevention** or treatment, which aims to alleviate discomfort and manage an existing condition. - It does not prevent the underlying exposure or the development of the disease. *Health education sessions* - Health education is a valuable **primary prevention** strategy, but it is an indirect measure. - While it can raise awareness and promote safer practices, it does not provide the immediate, direct physical protection against dust exposure that respiratory protective equipment offers.

Q: A factory worker exposed to asbestos presents with respiratory symptoms. Which primary prevention measure is most appropriate to reduce the risk of asbestosis in these workers?

Use of personal protective equipment. ***Use of personal protective equipment*** - **Using PPE**, such as respirators, prevents the inhalation of asbestos fibers, directly addressing the exposure that causes asbestosis. - This is a **primary prevention** measure because it aims to prevent the onset of the disease by eliminating or reducing exposure to the hazardous agent. *Periodic health check-ups* - **Periodic health check-ups** are a **secondary prevention** strategy, aiming for early detection of the disease rather than preventing its occurrence. - While beneficial for monitoring worker health, they do not prevent initial exposure to asbestos. *Regular spirometry* - **Regular spirometry** is a **secondary prevention** measure designed to detect changes in lung function early, signaling disease progression. - It does not prevent exposure to asbestos or the development of the disease itself. *Antioxidant supplementation* - **Antioxidant supplementation** is a **tertiary prevention** measure that might help mitigate cellular damage once exposure has occurred, but it does not prevent the initial exposure or the direct pathological effects of asbestos. - Its role in preventing asbestosis is not well-established as a primary preventative strategy.

Question 1

Inhalation of sugarcane dust could cause

Accepted Answer

Bagassosis

Answer

Farmer's Lungs

Answer

Tobacosis

Answer

Byssinosis

Question 2

The size of Respirable dust is -

Accepted Answer

1-5 microns

Answer

5-10 microns

Answer

20 microns

Answer

15 microns

Question 3

A 45-year-old man who works in a textile company visited hospital for routine health check-up. He prepares dyes in the company for the last 18 years. Which of the following investigation would you recommend for this patient?

Accepted Answer

Urine examination

Answer

Pulmonary function tests

Answer

Complete blood count

Answer

Liver function tests

Question 4

As per the Factory Act, the maximum working hours per week is:

Accepted Answer

48 hours

Answer

42 hours

Answer

35 hours

Answer

56 hours

Question 5

A factory of 30 persons has monthly wage bill of Rs 30,000. According to ESI Act, what amount will the employer pay as ESI contribution every month?

Accepted Answer

975 Rs

Answer

5000 Rs

Answer

2000 Rs

Answer

1425 Rs

Question 6

Mesothelioma is closely associated with which of the following?

Accepted Answer

Asbestosis

Answer

Silicosis

Answer

Anthracosis

Answer

Byssinosis

Question 7

What is the recommended frequency for periodic health examination of radiation workers according to AERB guidelines?

Accepted Answer

Every year

Answer

Every month

Answer

Every 6 months

Answer

Every 2 months

Question 8

The extended sickness benefit is given for:

Accepted Answer

365 days

Answer

124 days

Answer

91 days

Answer

182 days

Question 9

A 30-year-old male works in a factory where he is exposed to dust. What is the most appropriate primary prevention measure for occupational lung disease?

Accepted Answer

Use of respiratory protective equipment

Answer

Regular medical check-ups

Answer

Medications for symptoms

Answer

Health education sessions

Question 10

A factory worker exposed to asbestos presents with respiratory symptoms. Which primary prevention measure is most appropriate to reduce the risk of asbestosis in these workers?

Accepted Answer

Use of personal protective equipment

Answer

Periodic health check-ups

Answer

Regular spirometry

Answer

Antioxidant supplementation

Occupational Health — MCQs

Occupational Health — MCQs

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