Occupational Health Practice Questions

Q: Vibration white finger refers to :

Raynaud's syndrome. ***Raynaud's syndrome*** - **Vibration White Finger** is a form of secondary Raynaud's phenomenon, specifically caused by occupational exposure to high levels of **vibration**. [2] - It is characterized by **vasoconstriction** of the digital arteries, leading to episodic **finger blanching**, numbness, and tingling, often triggered by cold or stress. [2] *Acrocyanosis* - This condition involves persistent, painless **cyanosis** of the hands and feet, particularly in cold weather. - Unlike Raynaud's, acrocyanosis does not typically involve a triphasic color change (white, blue, red) and is generally **benign**. *Buerger's disease* - Also known as **thromboangiitis obliterans**, this is an inflammatory disease of small and medium-sized arteries and veins, mainly affecting the **limbs**. - It is strongly associated with **tobacco use** and can lead to gangrene and amputation, but its primary presentation is not vibration-induced. *Takayasu disease* - This is a form of **large-vessel vasculitis** primarily affecting the aorta and its major branches. [1] - It can lead to absent pulses, discrepancies in blood pressure between limbs, and systemic symptoms, but it is not directly related to vibration-induced digital vasoconstriction.

Q: The Employees State Insurance Act, 1948 of India provides for certain benefits to employees. Which among the following are benefits to insured persons or to other dependents under the Act ? 1. Disablement benefit 2. Funeral expenses 3. Maternity benefit 4. Travel benefit Select the correct answer using the code given below :

1, 2 and 3 only. ***1, 2 and 3 only*** - The **Employees' State Insurance Act of 1948** provides comprehensive social security benefits including **Disablement Benefit** for temporary or permanent incapacitation, **Funeral Expenses** for the deceased insured person, and **Maternity Benefit** to women. - These benefits are designed to protect employees and their dependents against various health-related and economic contingencies. *2 and 4 only* - This option is incorrect because **funeral expenses** are indeed covered, but there is no specific "travel benefit" as a standard provision under the ESI Act for insured persons or their dependents. - While medical benefits allow for treatment in ESI hospitals, a general travel benefit akin to reimbursement for personal travel is not part of the scheme. *1, 2, 3 and 4* - This option is incorrect because while **Disablement Benefit**, **Funeral Expenses**, and **Maternity Benefit** are provided, a general **Travel Benefit** is not one of the statutory benefits offered by the ESI Act. - The Act focuses on medical care, income support during sickness/maternity/disablement, and dependent support, not general travel. *1 and 3 only* - This option is incomplete as it correctly identifies **Disablement Benefit** and **Maternity Benefit** but excludes **Funeral Expenses**, which are explicitly covered as part of the benefits package under the ESI Act. - Funeral expenses provide financial support to the family of a deceased insured person to some extent.

Q: Exposure to gases is a common hazard in industries. The gases can be classified as simple asphyxiants, chemical asphyxiants and anaesthetic gases. Which among the following are chemical asphyxiating gases ? 1. Carbon monoxide 2. Chloroform 3. Cyanide gas 4. Hydrogen Select the correct answer using the code given below :

1 and 3. ***1 and 3*** - Both **carbon monoxide** and **cyanide gas** are classic examples of chemical asphyxiants. - They interfere with the body's ability to utilize oxygen, leading to **cellular hypoxia** despite adequate tissue perfusion. *2 and 4* - **Chloroform** is an anesthetic and hepatotoxin, not primarily an asphyxiant. - **Hydrogen** is a simple asphyxiant but does not have the chemical asphyxiant properties of carbon monoxide or cyanide. *1 and 4* - While **carbon monoxide** is a chemical asphyxiant, **hydrogen** is a simple asphyxiant that displaces oxygen without directly interfering with cellular respiration. - The question implies a focus on gases that chemically interfere with oxygen utilization. *2 and 3* - **Cyanide gas** is an asphyxiant, but **chloroform** is an anesthetic and can cause central nervous system depression and organ toxicity. - Chloroform's mechanism of action is distinct from the cellular hypoxia caused by asphyxiants.

Q: With regard to lead poisoning, consider the following statements : 1. Coproporphyrin in urine is a useful screening test. 2. Hand washing before eating is an important measure of personal hygiene. 3. The use of d-penicillamine has been reported to be effective in management. How many of the statements given above is/are correct ?

All three. ***All three*** - **Statement 1 is correct**: Urinary **coproporphyrin III** is a useful screening test for lead poisoning. Lead interferes with heme synthesis by inhibiting enzymes like ferrochelatase and ALA dehydratase, leading to accumulation and excretion of porphyrin precursors including coproporphyrin in urine. - **Statement 2 is correct**: **Hand washing before eating** is a critical preventive measure, especially in children. Lead dust on contaminated hands is a major route of exposure, particularly in environments with lead paint or industrial contamination. This is a key personal hygiene measure recommended by WHO and CDC. - **Statement 3 is correct**: **D-penicillamine** has indeed been reported to be effective in lead poisoning management. While **EDTA, DMSA (succimer), and dimercaprol** are more commonly used as first-line chelating agents today, d-penicillamine remains a valid chelating agent for heavy metal poisoning including lead, with documented effectiveness in medical literature. *1 only* - This option is incorrect because it ignores the validity of statements 2 and 3. - While statement 1 is accurate, **hand washing** (statement 2) is unquestionably an important preventive measure for lead poisoning. - Statement 3 is also correct as d-penicillamine **has been reported** to be effective (the statement doesn't claim it's first-line therapy). *2 only* - This option is incorrect because it ignores statements 1 and 3. - **Coproporphyrin in urine** (statement 1) is well-established as a screening test for lead exposure. - Statement 3 regarding d-penicillamine effectiveness is also correct based on medical literature. *None of the options* - This option is completely incorrect as all three statements are medically accurate. - Each statement represents correct information about lead poisoning screening, prevention, or management.

Q: With reference to occupational cancers, consider the following statements : 1. Skin cancer is a common occupational hazard in workers employed in nickel and chromium work. 2. Cancer bladder is an occupational hazard in workers employed in dye-stuffs and dyeing industry. 3. Leukaemia can occur on long exposure to benzol. 4. Lung cancer is typically found in workers employed in electric cable industries. Which of the statements given above are correct ?

1, 2 and 3 only. ***1, 2 and 3 only*** - **Skin cancer** is a well-documented occupational hazard for workers exposed to compounds like **nickel and chromium**, which are known **carcinogens**. - **Bladder cancer** is strongly linked to exposure to aromatic amines found in **dye-stuffs and the dyeing industry**. - **Leukaemia** is a known risk associated with prolonged exposure to **benzene (benzol)**, a common industrial solvent. *1 and 2 only* - This option is incomplete as it correctly identifies the link between **skin cancer** and nickel/chromium exposure, and **bladder cancer** and dye-stuffs, but it omits the correct association of **leukaemia** with benzene exposure. - The statement regarding **lung cancer** in electric cable industries is generally incorrect, as lung cancer is typically associated with other occupational exposures like **asbestos** or **radon**. *2 and 3 only* - While statements 2 and 3 are correct regarding **bladder cancer** in dye industries and **leukaemia** from benzene, this option incorrectly excludes the statement about **skin cancer** in nickel and chromium work, which is also accurate. - It does not encompass all the correct occupational cancer associations presented. *1 and 4 only* - This option includes the correct association of **skin cancer** with nickel and chromium. - However, the statement regarding **lung cancer** in workers employed in electric cable industries is generally **false**, as this industry is not typically associated with a high incidence of lung cancer compared to other occupational carcinogens.

Q: Raju is 30 years of age. He has been working in the ceramic and pottery industry for the last 10 years. Which one of the following conditions should he be screened for?

Silicosis. ***Silicosis*** - Working in the **ceramic and pottery industry** involves significant exposure to **silica dust**, making silicosis the most relevant occupational lung disease. - **Silicosis** is a chronic, progressive fibrotic lung disease caused by inhaling crystalline silica, common in mining, quarrying, and pottery. *Asbestosis* - **Asbestosis** is caused by the inhalation of **asbestos fibers**, typically found in construction, insulation, and shipbuilding. - While an occupational lung disease, it is not directly linked to the ceramic and pottery industry. *Anthracosis* - **Anthracosis** is commonly known as **coal workers' pneumoconiosis** and results from inhaling coal dust. - This condition is specifically associated with coal mining and not pottery work. *Byssinosis* - **Byssinosis** is an occupational lung disease caused by inhaling **cotton dust**, often seen in textile workers. - It is unrelated to exposure in the ceramic and pottery industry.

Q: The following table shows some of the pneumoconioses diseases along with the most implicated causative chemical agents. Which among the following represent the correct combinations of diseases and causative chemical agents? Select the correct answer using the code given below.

1 and 2. ***Correct: 1 and 2*** - **Statement 1 (Anthracosis - Coal dust)** is correct. Anthracosis, also known as **coal worker's pneumoconiosis**, is caused by chronic inhalation of coal dust particles [1]. - **Statement 2 (Byssinosis - Cotton dust)** is correct. Byssinosis is an occupational lung disease affecting **textile workers** exposed to cotton, flax, or hemp dust, causing airway obstruction. *Incorrect: 2 and 4* - Statement 4 is incorrect. **Siderosis** is caused by inhalation of **iron dust** (common in welders and miners), not asbestos [1]. Asbestos exposure causes **asbestosis** [1]. *Incorrect: 2 and 3* - Statement 3 is incorrect. **Bagassosis** is caused by inhalation of **sugarcane bagasse dust** (a hypersensitivity pneumonitis), not silica dust [1]. Silica causes **silicosis** [1]. *Incorrect: 1 and 3* - While statement 1 is correct (Anthracosis - Coal dust), statement 3 is incorrect as explained above (Bagassosis is caused by sugarcane bagasse dust, not silica dust) [1]. **References:** [1] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. The Lung, p. 695.

Q: Basophilic stippling of the RBCs is a sensitive index of

Lead poisoning. ***Correct: Lead poisoning*** - **Basophilic stippling** is a classic and sensitive hematologic finding in lead poisoning [1] - Results from inhibition of **pyrimidine 5'-nucleotidase**, which impairs RNA degradation in red blood cells - The presence of these **ribonucleoprotein granules** indicates defective heme synthesis and red cell maturation due to lead toxicity [1] - Other findings in lead poisoning include microcytic anemia and increased zinc protoporphyrin [1] *Incorrect: Silicosis* - A **lung disease** caused by inhaling **silica dust**, leading to pulmonary fibrosis and nodular lesions [2] - Does not primarily affect red blood cell morphology or cause basophilic stippling - Findings are limited to the respiratory system *Incorrect: Asbestosis* - A chronic **lung disease** caused by inhaling **asbestos fibers**, resulting in pulmonary fibrosis [2] - Does not directly cause changes in red blood cell morphology such as basophilic stippling - Associated with pleural plaques and increased risk of mesothelioma [2] *Incorrect: Arsenic poisoning* - Can cause various hematologic abnormalities including **anemia** and **pancytopenia** - **Not typically associated** with prominent basophilic stippling as a key diagnostic feature - Neurological symptoms (peripheral neuropathy), gastrointestinal symptoms, and dermatological findings (Mees' lines, hyperpigmentation) are more characteristic **References:** [1] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. Infectious Diseases, pp. 418-420. [2] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. The Lung, pp. 695-699.

Q: Match List-I with List-II and select the correct answer using the code given below the Lists:

A→1 B→3 C→2 D→4. ***A→1 B→3 C→2 D→4*** - This option correctly matches the occupational exposures with their characteristic health effects based on the lists provided. - **Lead poisoning** classically causes **wrist drop** due to radial nerve palsy, a hallmark neurological manifestation. - **Coal tar** exposure is associated with **skin cancer** (especially scrotal cancer in historical chimney sweeps) and **lung cancer** in occupational settings. - **Aniline dye** (particularly β-naphthylamine) is a well-established cause of **bladder cancer** in dye industry workers. - **Benzol (Benzene)** is notorious for causing **hematological disorders** including aplastic anemia, pancytopenia, and leukemia. *A→3 B→2 C→1 D→4* - This option incorrectly associates the exposures with their health effects. - The matching does not align with established occupational health associations. *A→3 B→1 C→4 D→2* - This option incorrectly associates the exposures with their health effects. - The matching does not align with established occupational health associations. *A→4 B→2 C→3 D→1* - This option incorrectly associates the exposures with their health effects. - Although lead can cause anemia, its most characteristic neurological effect is **wrist drop**, which is a diagnostic hallmark. Benzol (benzene) is primarily associated with hematological disorders, not neurological manifestations like wrist drop.

Q: Match List-I with List-II and select the correct answer using the code given below the Lists: List-I (Pneumoconioses): A. Anthracosis B. Byssinosis C. Bagassosis D. Silicosis List-II (Occupational Exposures): 1. Textile industry 2. Coal mining 3. Building and construction work 4. Paper industry Codes:

A→2 B→1 C→4 D→3. ***Correct: A→2 B→1 C→4 D→3*** - This option correctly matches each pneumoconiosis with its primary occupational exposure. - **Anthracosis (A→2)**: Associated with **coal mining** - caused by inhalation of coal dust leading to "black lung disease" - **Byssinosis (B→1)**: Associated with **textile industry** - caused by cotton dust exposure, presents as "Monday fever" - **Bagassosis (C→4)**: Associated with **paper industry** - caused by moldy sugarcane bagasse (fibrous residue) used in paper production - **Silicosis (D→3)**: Associated with **building and construction work** - caused by crystalline silica dust from stone, sand, and concrete *Incorrect: A→3 B→2 C→1 D→4* - Incorrectly matches **Anthracosis** with construction and **Byssinosis** with coal mining - **Byssinosis** is specifically linked to cotton dust in textiles, not coal mining *Incorrect: A→4 B→1 C→3 D→2* - Incorrectly associates **Anthracosis** with paper industry and **Bagassosis** with coal mining - **Anthracosis** results from coal dust, not paper production *Incorrect: A→1 B→4 C→3 D→2* - Incorrectly matches **Anthracosis** with textiles and **Byssinosis** with paper industry - **Anthracosis** is "black lung" from coal, and **Byssinosis** is from cotton dust, not paper

Question 1

Vibration white finger refers to :

Accepted Answer

Raynaud's syndrome

Answer

Acrocyanosis

Answer

Buerger's disease

Answer

Takayasu disease

Question 2

The Employees State Insurance Act, 1948 of India provides for certain benefits to employees. Which among the following are benefits to insured persons or to other dependents under the Act ?

1. Disablement benefit 
2. Funeral expenses 
3. Maternity benefit 
4. Travel benefit

Select the correct answer using the code given below :

Accepted Answer

1, 2 and 3 only

Answer

2 and 4 only

Answer

1, 2, 3 and 4

Answer

1 and 3 only

Question 3

Exposure to gases is a common hazard in industries. The gases can be classified as simple asphyxiants, chemical asphyxiants and anaesthetic gases. Which among the following are chemical asphyxiating gases ?

1. Carbon monoxide

2. Chloroform

3. Cyanide gas

4. Hydrogen

Select the correct answer using the code given below :

Accepted Answer

1 and 3

Answer

2 and 4

Answer

1 and 4

Answer

2 and 3

Question 4

With regard to lead poisoning, consider the following statements :

1. Coproporphyrin in urine is a useful screening test.
2. Hand washing before eating is an important measure of personal hygiene.
3. The use of d-penicillamine has been reported to be effective in management. How many of the statements given above is/are correct ?

Accepted Answer

All three

Answer

None of the options

Answer

2 only

Answer

1 only

Question 5

With reference to occupational cancers, consider the following statements :

1. Skin cancer is a common occupational hazard in workers employed in nickel and chromium work.
2. Cancer bladder is an occupational hazard in workers employed in dye-stuffs and dyeing industry.
3. Leukaemia can occur on long exposure to benzol.
4. Lung cancer is typically found in workers employed in electric cable industries. Which of the statements given above are correct ?

Accepted Answer

1, 2 and 3 only

Answer

1 and 2 only

Answer

2 and 3 only

Answer

1 and 4 only

Question 6

Raju is 30 years of age. He has been working in the ceramic and pottery industry for the last 10 years. Which one of the following conditions should he be screened for?

Accepted Answer

Silicosis

Answer

Asbestosis

Answer

Anthracosis

Answer

Byssinosis

Question 7

The following table shows some of the pneumoconioses diseases along with the most implicated causative chemical agents. Which among the following represent the correct combinations of diseases and causative chemical agents?

Select the correct answer using the code given below.

Accepted Answer

1 and 2

Answer

2 and 4

Answer

2 and 3

Answer

1 and 3

Question 8

Basophilic stippling of the RBCs is a sensitive index of

Accepted Answer

Lead poisoning

Answer

Silicosis

Answer

Asbestosis

Answer

Arsenic poisoning

Question 9

Match List-I with List-II and select the correct answer using the code given below the Lists:

Accepted Answer

A→1  B→3  C→2  D→4

Answer

A→3  B→2  C→1  D→4

Answer

A→3  B→1  C→4  D→2

Answer

A→4  B→2  C→3  D→1

Question 10

Match List-I with List-II and select the correct answer using the code given below the Lists:

List-I (Pneumoconioses):
A. Anthracosis
B. Byssinosis  
C. Bagassosis
D. Silicosis

List-II (Occupational Exposures):
1. Textile industry
2. Coal mining
3. Building and construction work
4. Paper industry

Codes:

Accepted Answer

A→2  B→1  C→4  D→3

Answer

A→3  B→2  C→1  D→4

Answer

A→4  B→1  C→3  D→2

Answer

A→1  B→4  C→3  D→2

Occupational Health — MCQs

Occupational Health — MCQs

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