Smokers exhibit altered oxygen saturation values compared to non-smokers
the verdict
SUPPORTED
the evidence backs this
confidence 82/100
Evidence indicates that tobacco smoking alters oxygen-related blood parameters, such as carboxyhemoglobin and peripheral oxygen saturation, due to carbon monoxide inhalation.
Evidence for · 3
Adverse effects of cigarette smoking on exhaled breath carbon monoxide, blood carboxyhemoglobin, and hematological parameters amongst Sri Lankan adult tobacco smokers: A descriptive study
2021 · cited by 11
This study demonstrates that tobacco smoking increases carboxyhemoglobin (COHb%) and alters hematological parameters by binding carbon monoxide to hemoglobin.
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More for · 2
Association between daytime sleepiness and impaired expiratory lung function due to smoking in patients with mild-to-severe OSA: an observational study
2025 · cited by 2
Patients with obstructive sleep apnea who smoke and have impaired expiratory lung function exhibited lower mean oxygen saturation values compared to non-smoking groups.
Tobacco smoking: a stimulus for blood volume expansion.
2025 · cited by 1
Regular tobacco smoking involves inhaling carbon monoxide which binds to hemoglobin, acutely reducing arterial oxygen content and triggering compensatory hematological adjustments.