Thread by @AvrahamCooperMD, Four factors that can interfere w/ accurate pulse oximetry measurement: Methemoglobinemia (falsely [...]

Avraham Z. Cooper, MD

AvrahamCooperMD

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Four factors that can interfere w/ accurate pulse oximetry measurement:

Methemoglobinemia (falsely

)

Carbon monoxide poisoning (falsely

)

Venous congestion eg severe tricuspid regurg or cardiomyopathy (falsely

)

Dark skin (falsely

Four factors that can interfere w/ accurate pulse oximetry measurement: Methemoglobinemia (falsely ) Carbon monoxide poisoning (falsely ) Venous congestion eg severe tricuspid regurg or cardiomyopathy (falsely ) Dark skin (falsely ) #MedTwitter

Four factors that can interfere w/ accurate pulse oximetry measurement: Methemoglobinemia (falsely ) Carbon monoxide poisoning (falsely ) Venous congestion eg severe tricuspid regurg or cardiomyopathy (falsely ) Dark skin (falsely ) #MedTwitter

Four factors that can interfere w/ accurate pulse oximetry measurement: Methemoglobinemia (falsely ) Carbon monoxide poisoning (falsely ) Venous congestion eg severe tricuspid regurg or cardiomyopathy (falsely ) Dark skin (falsely ) #MedTwitter

Four factors that can interfere w/ accurate pulse oximetry measurement: Methemoglobinemia (falsely ) Carbon monoxide poisoning (falsely ) Venous congestion eg severe tricuspid regurg or cardiomyopathy (falsely ) Dark skin (falsely ) #MedTwitter

Correction as someone pointed out: Carbon monoxide poisoning will falsely

SpO2.

Two other factors to remember:

Nail polish (falsely

)

Raynaud’s (falsely

)

You can follow @AvrahamCooperMD.

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