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SEBA Class 10 Health Care Important Chapter 5 Bio Medical Waste Management
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Bio Medical Waste Management
Chapter: 5
| IMPORTANT SOLUTIONS |
A. Short Type Question & Answer:
1. What is the definition of bio-medical waste?
Ans: Bio-medical waste is defined as any waste generated during the diagnosis, treatment, testing, research, or production of biological products for humans or animals.
2. What is pathological waste?
Ans: Pathological waste consists of human or animal tissues, organs, body parts, body fluids, blood, and fetuses.
3. Name two major and two minor sources of bio-medical waste.
Ans: Two major sources are hospitals and blood banks. Two minor sources are dental clinics and funeral services.
4. What viral diseases can be caused by exposure to infected needles, soiled linen, and human excreta?
Ans: Exposure to infected needles, soiled linen, and contaminated body fluids can cause HIV/AIDS, Hepatitis B, Hepatitis C, and other blood-borne infections.
5. Which items fall under the category of ‘Sharps’ in bio-medical waste?
Ans: Sharps include waste items like needles, infection sets, scalpels, knives, blades, and broken glass.
6. Why is the color-coding of bio-medical waste important?
Ans: Color coding is essential because it reduces the quantity of waste needing special treatment, prevents the illegal reuse of sharps, provides opportunities for recycling, and ensures overall safety.
7. What is genotoxic waste?
Ans: Genotoxic waste is waste containing substances with genotoxic properties, such as cytostatic drugs often used in cancer therapy.
8. Mention any three thermal technologies used for disposing of bio-medical waste.
Ans: Three thermal technologies used for disposal are autoclaves, hydroclaves, and incinerators.
9. What specific health risk is faced by rag pickers who sort through hospital garbage?
Ans: Rag pickers who sort out garbage in and around hospitals are at a high risk of contracting tetanus.
10. Who should chair the hospital waste management committee?
Ans: The hospital waste management committee should be chaired by the head of the institute.
B. Fill in the Blanks:
1. Bio-medical waste is generated during the diagnosis, treatment, testing, research or production of ________ products for humans or animals.
Ans: Biological.
2. Dental clinics, home care, and funeral services are considered as ________ sources of biomedical waste.
Ans: Minor.
3. The hospital waste management committee should be chaired by the ________ of the institute.
Ans: Head.
4. Bio-medical waste scattered around hospitals invites animals that are responsible for the spread of communicable diseases like plague and ________.
Ans: Rabies.
5. According to the color coding criteria, expired or discarded medicines are disposed of in ________ colored non-chlorinated plastic bags.
Ans: Yellow.
C. True or False:
1. The disposal of untreated health care wastes in landfills can lead to the contamination of drinking, surface, and ground waters.
Ans: True.
2. Pathological waste typically consists of chemical substances like laboratory reagents and heavy metals like batteries.
Ans: False.
3. Contaminated recyclable waste, such as intravenous tubes, catheters, and urine bags, should be disposed of in red non-chlorinated plastic bags or containers.
Ans: True.
4. Inadequate incineration of unsuitable materials results in the release of pollutants into the air and the generation of ash residue.
Ans: True.
5. Sanitary attendants and clinicians do not need training in hospital waste management as their exposure to hazards is minimal.
Ans: False.
D. Match the Following:
| Column A | Column B |
| (i) Pathological Waste | (a) Separation of waste into different categories |
| (ii) Sharps | (b) Cytotoxic drugs used in cancer therapy |
| (iii) Genotoxic Waste | (c) Needles, scalpels, blades, and broken glass |
| (iv) Bio-medical Waste Management | (d) Safe collection, treatment, and disposal of bio-medical waste |
| (v) Segregation | (e) Human tissues, organs, and body parts |
Ans:
| Column A | Column B |
| (i) Pathological Waste | (e) Human tissues, organs, and body parts |
| (ii) Sharps | (c) Needles, scalpels, blades, and broken glass |
| (iii) Genotoxic Waste | (b) Cytotoxic drugs used in cancer therapy |
| (iv) Bio-medical Waste Management | (d) Safe collection, treatment, and disposal of bio-medical waste |
| (v) Segregation | (a) Separation of waste into different categories |
E. Long Type Question & Answer:
1. Discuss the environmental impacts of inadequate bio-medical waste treatment and disposal.
Ans: Inadequate treatment and disposal of healthcare waste can indirectly pose health risks by releasing pathogens and toxic pollutants into the environment. Specifically, dumping untreated waste in improperly constructed landfills can contaminate drinking, surface, and ground waters. Treating waste with chemical disinfectants can release harmful substances if they are not stored and disposed of properly, and inadequate incineration releases harmful pollutants into the air while generating toxic ash residue.
2. Explain the importance of proper hospital waste management concerning the hospital staff and the general public.
Ans: Proper management of infectious and hazardous bio-medical waste is crucial for reducing the occurrence of fatal diseases like HIV/AIDS and sepsis transmitted by contaminated equipment. It also prevents the illegal trading and reuse of contaminated medical tools, such as disposed syringes, which is a primary cause of widespread disease contraction. Furthermore, strict adherence to waste management protocols significantly lowers the number of workplace injuries reported by healthcare staff.
3. Describe the different categories of bio-medical waste generation within a hospital setting.
Ans: Bio-medical waste in a hospital is generated across several categories: Infectious waste (containing pathogens like swabs and cultures), Pathological waste (human tissues or fluids), Sharps (needles, knives, and blades), Pharmaceutical waste (containing medications), Genotoxic waste (substances used in cancer therapy), Chemical waste (laboratory reagents), Heavy metal waste (like batteries), Pressurized containers (such as gas cylinders), and Radioactive waste.
4. What are the primary problems associated with haphazard and improper bio-medical waste management?
Ans: Improper management results in a lack of segregation, mixing hazardous hospital waste with general waste. This leads to environmental pollution, unpleasant smells, and the multiplication of disease vectors like insects, rodents, and worms. Ultimately, this facilitates the transmission of communicable diseases such as typhoid, cholera, hepatitis, and AIDS through contaminated syringes and bodily fluids, and attracts animals like stray cats and dogs that can spread plague and rabies.
5. What are the main functions and responsibilities of a hospital waste management committee?
Ans: A hospital waste management committee is responsible for creating a hospital-specific action plan for waste management, as well as overseeing its supervision, monitoring, and implementation. The committee must have wide representation from all major departments. They are also responsible for ensuring that annual reports and accident reports are submitted to the concerned authorities exactly as required under the Bio-Medical Waste rules format.
6. Why is training on hospital waste management essential for healthcare staff like nurses, clinicians, and attendants?
Ans: Nurses, sanitary workers, and clinicians spend a maximum amount of time with patients, which increases their exposure to occupational hazards present in bio-medical waste. Proper training equips them with the latest information, skills, and practices necessary to manage this waste safely, thereby reducing hospital-acquired infections and protecting their own health. Inadequate knowledge of waste handling can lead to serious health consequences for these workers and have a significant negative impact on the community and environment.
7. List the different technologies and methods available for the disposal of microbiological and biotechnological waste in hospitals.
Ans: The disposal methods are divided into several distinct technologies: Chemical technology, Thermal technology (which includes autoclaves, hydroclaves, incinerators, microwaves, and screw feeds), Mechanical technology (compaction, grinding/shredding, pulverization, and inertization), Biological methods, Plasma torch technology, Deep burial, Landfilling (including open dumps and sanitary landfills), and Worm composting.
8. How does hazardous health care waste directly affect human health, and which specific bacteria and parasites are associated with it?
Ans: Hazardous health care waste can directly cause infections, genotoxicity, cytotoxicity, chemical toxicity, radioactivity hazards, and physical injuries. Bacterial infections associated with contaminated hospital waste (such as bodily fluids in landfills or contaminated sharps) include typhoid, cholera, tetanus, septicemia, rheumatic fever, endocarditis, and skin infections caused by bacteria like Salmonella typhi, Vibrio cholerae, Clostridium tetani, Pseudomonas, and Streptococcus. Parasitic infections, such as cutaneous leishmaniasis, kala-azar, and malaria, can spread through poorly managed hospital sewage systems containing blood and human excreta.
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