What type of ventilation is needed in a theatre?

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Enhance your knowledge and skills in anaesthesia and theatre nursing. Test your understanding with multiple choice questions, complete with explanations and hints. Prepare effectively for your exam and boost your confidence now!

Multiple Choice

What type of ventilation is needed in a theatre?

Explanation:
Maintaining a clean surgical environment relies on a pressure gradient that keeps air flow from the theatre to surrounding spaces. Positive pressure inside the theatre pushes air outward whenever there are gaps or door openings, so any leakage tends to exit rather than bring in contaminated air. This helps protect the sterile field from microbes present in adjoining areas. Negative pressure would pull air in from corridors, increasing contamination risk. Neutral or mixed pressures don’t reliably prevent ingress of contaminants when doors or gaps are present. So the correct approach is positive pressure ventilation.

Maintaining a clean surgical environment relies on a pressure gradient that keeps air flow from the theatre to surrounding spaces. Positive pressure inside the theatre pushes air outward whenever there are gaps or door openings, so any leakage tends to exit rather than bring in contaminated air. This helps protect the sterile field from microbes present in adjoining areas. Negative pressure would pull air in from corridors, increasing contamination risk. Neutral or mixed pressures don’t reliably prevent ingress of contaminants when doors or gaps are present. So the correct approach is positive pressure ventilation.

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