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Apollo Hospitals International Limited, Ahmedabad

Ensuring safety in Hospitals

According to World Health Organization, 80-85% of total amount of waste generated by healthcare activities is the general waste. Only 15-20% waste is considered hazardous which may be infectious, injurious, toxic or radioactive. Poor management of healthcare waste exposes healthcare workers, waste handlers and the community to infections, toxic effects and injuries. Lack of awareness about the health hazards related to healthcare waste, inadequate training in proper waste management, absence of waste management and disposal systems, insufficient financial and human resources and the low priority given to the subject are the most common problems connected with healthcare waste management.

Biomedical Waste Management Policy of Apollo Hospitals International Limited, Ahmedabad, gives clear direction about the waste disposal process, provides practical guidance to hospital staff on safety at all stages of waste handling to avoid nosocomial infections and physical injuries and encourages safe working practices among healthcare workers.

Hazards Related to Biomedical Waste

Potential risks of biomedical waste are well known to all healthcare workers and include sharp inoculation injuries, transmission of infections either through infected blood/tissues, airborne transfer or skin contact. Hepatitis-B, Hepatitis-C, HIV and other viruses may be transmitted through infected blood. Chemical & pharmaceutical wastes can affect the body through inhalation of dust or aerosols, skin absorption, ingestion of accidentally contaminated food, ingestion through bad practice of mouth pipetting or from contact with chemotherapy patients’ body fluids. Cytotoxic compounds could be extremely irritant to skin and eyes and
also has genotoxic, mutagenic effects. Radioactive wastes can be a potential carcinogenic hazard. The effect of an exposure ranges from minor symptoms like headache, dizziness and vomiting to most serious adverse effects on genetic material.

Classification of Healthcare Waste

Classifying biomedical waste is another important aspect for effective handling and further disposal. Healthcare waste may be classified into clinical waste, sharps, chemical waste, pharmaceutical waste, radioactive waste, laboratory waste, cytotoxic/genotoxic waste, food & general waste etc. Each category of waste has to be treated and further be disposed off in different ways.

Healthcare Waste Management

Segregation

Segregating biomedical waste at the point of generation is critical to the safe management of biomedical wastes, which facilitates further collection, handling, storage, transportation and disposal and reduces the handling costs of these wastes. It is very important to see that there is no mixing of infectious andnon-infectious wastes. Responsibility of proper segregation primarily lies with all the staff generating the waste during clinical or non-clinical operations. Central Pollution Control Board (CPCB) has published the guidelines for the healthcare organizations which recommend the colour coded bins/containers/sacks/ receptacles to be provided for easy identification and effective sorting. They are placed as close to the point of waste generation as possible.

Hospital should display the segregation guidelines for clear identification & sorting of the types of the waste and place appropriately color coded/labeled waste bins, containers & trolleys. It is important not to allow bins/containers to be filled more than 3/4th level, to avoid spillage. Sharps are discarded in puncture proof auto-locked containers which are usually filled up with 1% Sodium Hypochlorite solution upto 3/4th level. Disposables and plastic items are mutilated and glass vials/bottles are emptied before throwing in waste bins.

Collection

As biomedical waste gets accumulated in small quantities in clinical areas, it needs to be collected as soon as possible. The interval between subsequent collections should be as short as reasonably practicable. With regard to infectious and foul smelling waste, the collection period should even be shorter. As a routine practice, it is advisable to collect waste not later than every two and four hours from ICUs and wards/other areas respectively. Tying and lifting the waste bag on top without getting it compressed is very important consideration during waste collection. Handlers must wear PPE and take all precautions to prevent sharp injury or body fluid exposure. Waste bins must be regularly washed and disinfected.

Local Storage

If it is not possible to frequently transport the waste from operational areas directly to central storage site; it is preferred to have local storage areas on each floor. Waste can temporarily be stored here securely in labeled color coded containers/polythene bags without littering the surrounding. Such local storage areas are located slightly away from the patient care areas and public spaces. Waste handlers must take all precautions to avoid mixing of infectious and non-infectious waste in local storage. Different wastes in the same storage area should be clearly demarcated. Storage area should be properly tiled for ease in cleaning and to prevent entry of rodents. Waste should be transported from local storage area to central storage area at the earliest possible. Daily cleaning of these storages must be done.

Trasnportaion to Central Sotrage

Transportation of waste from local to central storage area is one of the important links in the waste management process. Central storage areas are generally situated separately within the hosptial premises. Waste is transported in close air-tight color-coded container trolleys at scheduled time interval through predefined route. Scheduling and route of transportation should be such that there is no crossing over with food trolleys or sterile areas. Few salient points pertaining to central storage areas are as under:

  • Reserved for biomedical waste only
  • Located away from kitchen, material stores and from public routes
  • Adequetely lit and ventilated rooms/ cubicles with impervious tough flooring
  • Restricted entry, colour-coded selfclosing doors, kept locked when not in use
  • Secured from animal entry and free from insects or rodent infestations
  • Availability of washing facilities, appropriate PPE, first-aid kit for waste handlers
  • Availability of fire extinguishers
  • Scheduled washing and disinfection of central storage areas

Transportation to Final Disposal Site, Treatment & Disposal

In India, most of the healthcare facilities are outsourcing these activities to Common Biomedical Waste Treatment Facility (Pollution Control Board Authorized CBWTF). Waste transportation to final disposal site is done daily in close cart/ vehicle with smooth & impermeable surfaces. Thumb rule here is that no waste must be kept stored in the hospital beyond the period of 48 hours. Infectious wastes, in particular, start decomposing after few hours and become more hazardous if stored beyond 48 hours. Weighing of the outgoing waste is usually done to monitor waste generation per bed per day. Indian healthcare facilities generate 1-2 kgs waste per bed. Since it is expected to keep increasing in coming years, it is very essential to keep a tight watch on waste generation. Hospital’s Infection Control Officer visits the final disposal site periodically to see the proper disposal process.

Ensuring safety in HospitalsAccording to World Health Organization, 80-85% of total amount of waste generated by healthcare activities is the general waste. Only 15-20% waste is considered hazardous which may be infectious, injurious, toxic or radioactive. Poor management of healthcare waste exposes healthcare workers, waste handlers and the community to infections, toxic effects and injuries. Lack of awareness about the health hazards related to healthcare waste, inadequate training in proper waste management, absence of waste management and disposal systems, insufficient financial and human resources and the low priority given to the subject are the most common problems connected with healthcare…

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