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Related Experiment Videos

Bacteriological evaluation of a down-draught necropsy table ventilation system

W al-Wali1, C C Kibbler, J E McLaughlin

  • 1Division of Communicable Diseases, Royal Free Hospital School of Medicine, London.

Journal of Clinical Pathology
|August 1, 1993
PubMed
Summary

This study assessed a down-draught necropsy table ventilation system. The system significantly reduced airborne bacteria, offering potential protection for post mortem room staff against infections.

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Area of Science:

  • Forensic Pathology
  • Occupational Health and Safety
  • Microbiology

Background:

  • Post mortem procedures can generate airborne contaminants.
  • Protecting staff from potential airborne infections is crucial in necropsy settings.

Purpose of the Study:

  • To evaluate the microbiological efficacy of a down-draught necropsy table ventilation system.
  • To determine the system's effectiveness in reducing airborne microbial load during post mortem examinations.

Main Methods:

  • Air sampling was conducted with and without staff and cadavers.
  • Ventilation system performance was tested with functioning and non-functioning extraction.
  • A tracer organism (Bacillus subtilis var niger) assessed the air curtain's penetration during bone saw use.

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Main Results:

  • Bacterial counts showed minimal variation with staff/cadaver presence alone.
  • A two to three-fold reduction in airborne bacteria was observed when the ventilation system was operational.
  • The air curtain demonstrated a two to three log reduction in tracer organism counts during sawing.

Conclusions:

  • The down-draught necropsy table ventilation system is microbiologically effective.
  • The system offers potential protection for post mortem room staff against airborne pathogens.