CHSE Odisha Voc. Microbiology & Serology case studies
CHSE Odisha Voc. Microbiology & Serology · Put your knowledge to work in context.
The CHSE Odisha Vocational Microbiology & Serology subject is a higher-secondary vocational qualification offered within the Council of Higher Secondary Education, Odisha vocational stream. It suits students who want a laboratory-facing skill set rather than a purely academic biology track: the syllabus pairs basic microbiology (sterilisation, culture, microbial growth, disinfection and antimicrobial resistance) with immunology and serology (innate and acquired immunity, antigens and antibodies, serological techniques and immunodiagnosis), then applies both to medical microbiology, clinical specimen handling and reporting, and applied areas such as food, water, soil and industrial microbiology. The CHSE Odisha Voc. Microbiology & Serology case studies are 5 cases and about 3,471 words.
1Autoclave Biological Indicator Failure in a District Laboratory
A 120-bed district hospital runs a single vertical autoclave (50 L chamber) for the microbiology laboratory. On Monday the load contains twelve 1-litre bottles of nutrient agar, twenty polypropylene bags of discarded culture plates, and a 500 mL bottle of a heat-labile antibiotic stock solution that a new technician placed inside 'for convenience'.
781 words, about 4 min2Discordant HIV Serology in an Antenatal Woman
A 26-year-old woman at 28 weeks' gestation attends an antenatal clinic. She has no history of fever, weight loss, or risk exposure, but had a transient flu-like illness three weeks ago and received an inactivated influenza vaccine ten days ago.
677 words, about 3 min3Coliform Detection and Post-Treatment Regrowth at a Packaged Water Plant
A packaged drinking water plant supplies 20,000-litre batches from a borewell. Treatment is sand filtration, reverse osmosis, ultraviolet disinfection, and no chlorination.
720 words, about 4 min4Culture-Negative CSF in a Patient Treated Before Lumbar Puncture
A 47-year-old man is admitted with 2 days of fever, severe headache, vomiting, and neck stiffness. He saw a local practitioner and took oral cefixime 200 mg twice daily for two days before lumbar puncture.
651 words, about 3 min5Carbapenem-Resistant Klebsiella Outbreak and an Unreliable Colistin Disk
A 16-bed medical intensive care unit notes six patients with carbapenem-resistant Klebsiella pneumoniae (CRKP) isolated from tracheal aspirates over 10 days; four had ventilator-associated pneumonia, two died. Isolates are resistant to meropenem (MIC 16 mg/L by broth microdilution), piperacillin-tazobactam, and cefotaxime; one blood isolate is also resistant to colistin by broth microdilution (MIC 8 mg/L), but the laboratory's routine colistin disk diffusion showed a 12 mm zone, which a trainee recorded as susceptible.
642 words, about 3 min