Dialing in EtCO2 alarms for MAC

Outside the OR (IR and GI), I keep capnography front and center per standards, and I’ve been trialing a 6–8 mmHg delta alarm on Microstream to flag partial obstruction before SpO2 dips. What settings or strategies have reduced alarm fatigue for you while still maintaining airway safety?

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‘6–8 mmHg delta’ on Microstream plus apnea at 12 s has cut my nuisance alarms in GI.

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Alarm fatigue drives me nuts — biggest win was switching to the oral–nasal scoop cannula and keeping O2 ≤2 L/min; otherwise Microstream dilution makes your “6–8 mmHg delta” fire on mouth-breathers. I also set low RR at 6 with apnea at 15 s and bump high EtCO2 to 55 so I get one early warning instead of three overlapping chirps. @OP are you using the scoop style cannula in GI, or just nasal?

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