Anesthesia illusions


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Mysterious anesthesia flowmeter illusion

The old anaesthesia machine below has a carbon dioxide flowmeter. This is really dangerous because if you forget to put it off, the patient can become hypercarbic. Try and find the flow meter knob to put the CO2 flowmeter off. You can see the oxygen, air, and nitrous oxide knobs, but where is the carbon dioxide knob ?

anesthesia flowmeter illusion



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