CM11.1-6 | Occupational Health — Glossary

The concentration of hepatitis B surface antibody (anti-HBs) in serum; a level ≥10 mIU/mL indicates protective immunity following HBV vaccination.

Diffuse interstitial pulmonary fibrosis caused by asbestos fibre inhalation, with lower-zone predominance; associated with pleural plaques, mesothelioma, and lung cancer.

Measurement of a hazardous substance or its metabolite in biological specimens (blood, urine) to estimate internal dose of occupational exposure; compared against Biological Exposure Indices (BEIs).

A work-related syndrome characterised by three dimensions: emotional exhaustion (depletion of emotional resources), depersonalisation/cynicism (detachment from patients), and reduced personal accomplishment (sense of inefficacy).

Airway disease caused by cotton dust (endotoxin); characteristically presents as Monday morning chest tightness that improves through the working week.

Under the Factories Act 1948, the medical officer appointed to certify fitness of workers for hazardous processes and to notify occupational diseases to the Inspector of Factories.

Indian legislation providing lump-sum compensation to workers (or their dependants) who are not covered under ESI, for death or disablement resulting from employment injury or listed occupational diseases.

Neuropsychiatric syndrome of mercury poisoning characterised by excessive shyness, irritability, social withdrawal, insomnia, and memory impairment ('Mad Hatter syndrome').

The science of fitting the job to the worker by optimising the man-machine-environment interface to prevent musculoskeletal injury and maximise performance.

India's compulsory contributory social health insurance legislation for workers in factories and specified establishments, providing medical and cash benefits for sickness, maternity, disablement, and death.

The statutory autonomous body that administers the ESI scheme, established under the ESI Act; operates hospitals, dispensaries, and panel clinics for insured workers.

ESI sickness benefit extended to up to 2 years at 70% wages for 34 specified long-term diseases including tuberculosis, malignancy, mental illness, and cardiac disease.

A qualified medical practitioner appointed at a factory, certified by the Chief Inspector of Factories, responsible for health surveillance, first aid services, occupational hygiene liaison, ESI benefit certification, and occupational disease notification.

A list of 29 industrial processes under the Factories Act 1948 that carry significant health risk (lead, asbestos, silica, benzene, chrome, etc.) and trigger mandatory annual medical examinations.

Passive immunisation given to non-immune healthcare workers within 24–48 hours of HBV exposure, providing immediate but temporary protection while active vaccination takes effect.

A ranked framework for occupational hazard control: elimination > substitution > engineering controls > administrative controls > personal protective equipment (PPE).

IgE-mediated immediate hypersensitivity to latex proteins causing urticaria, angioedema, bronchospasm, and potentially anaphylaxis; most dangerous form of latex allergy in healthcare workers.

A validated 22-item psychometric tool measuring burnout across three dimensions: emotional exhaustion, depersonalisation, and personal accomplishment; widely used in healthcare worker burnout research.

Psychological harm resulting from participating in, witnessing, or failing to prevent actions that violate one's moral code; distinct from burnout in having a values-violation rather than workload aetiology.

A percutaneous penetrating wound caused by a needle or other sharp instrument contaminated with blood or body fluids, the primary occupational route of bloodborne pathogen transmission in healthcare.

A formula that calculates the Recommended Weight Limit (RWL) for a specific manual lifting task based on six biomechanical and psychophysical variables; Lifting Index = actual load ÷ RWL.

Occupational toxicity from chronic inhalation of nitrous oxide in unscavenged operating theatres; causes irreversible methionine synthase inhibition leading to megaloblastic changes and reproductive toxicity.

A disease listed under Schedule III of the Factories Act 1948 that must be reported to the inspector of factories by the certifying surgeon when diagnosed in a factory worker.

Any of 29 occupational diseases listed under Schedule III of the Factories Act 1948 that the certifying surgeon must notify to the Inspector of Factories within the prescribed period when diagnosed in a factory worker.

Any disease caused, exacerbated, or otherwise related to conditions of employment, including exposures to physical, chemical, biological, ergonomic, or psychosocial hazards.

Tuberculosis contracted as a result of occupational exposure to Mycobacterium tuberculosis in healthcare settings; healthcare workers in high-TB-burden countries face 2–5× the general population risk.

Life pension at 90% of wages proportional to assessed degree of permanent disability from employment injury, under the ESI scheme.

Chronic lead poisoning characterised by peripheral motor neuropathy (wrist-drop, foot-drop), lead colic, anaemia with basophilic stippling, and Burton's line at the gingival margin.

A group of lung diseases caused by inhalation of mineral or organic dusts, leading to pulmonary fibrosis or inflammation; classified by the ILO International Classification.

Antiretroviral medication (TDF+FTC+dolutegravir, 28-day course) administered to a healthcare worker after high-risk HIV exposure to prevent seroconversion; must be initiated within 72 hours of exposure.

An ergonomic assessment tool that scores upper limb posture, force, and repetition to generate a risk score (1–7); scores ≥4 require immediate investigation.

Needles and sharps with built-in safety features (retractable tips, self-sheathing mechanisms, needleless IV systems) that reduce needlestick injury risk by 60–80% compared to conventional sharps.

ESI cash benefit of 70% of daily average wages paid for up to 91 days when an insured worker is certified unfit for work due to illness; requires ≥70 contribution days in the preceding period.

Progressive fibrotic lung disease caused by inhalation of free crystalline silica (quartz) dust; characterised by upper-zone nodular opacities and eggshell hilar calcification on chest X-ray.

Comorbidity of silicosis and pulmonary tuberculosis; silica impairs macrophage killing of Mycobacterium tuberculosis, markedly increasing susceptibility to TB.

Infection control measures applied to all patients regardless of known or suspected infection status, including hand hygiene, gloves, masks, gowns, safe sharps handling, and respiratory hygiene.

ESI cash benefit of 90% of daily wages paid for the entire duration of certified temporary disablement from employment injury; payable from day 1 of insurable employment.

A personal radiation monitoring device worn by radiation workers that measures cumulative ionising radiation dose and is reviewed at regular intervals against the permissible dose limit of 20 mSv/year (AERB).

The maximum ambient concentration of a chemical agent in the workplace deemed safe for an 8-hour working day, 40-hour working week, as set by ACGIH.

Funding structure of the ESI scheme involving contributions from three parties: employer (3.25% of wages), employee (0.75% of wages), and government (administrative costs and land/buildings).

The maximum wage (Rs 21,000/month) below which ESI coverage is compulsory; workers above this ceiling are not mandatorily insured under ESI.