Up to date, expert answers to frequently asked questions (FAQ) about oxygen supply systems, respiratory care and pulse oximetry written by OCC & collaborators.
Causes of inaccuracies
Do tattoos impact pulse oximeter accuracy?
Anecdotal observations have suggested potential oximeter inaccuracy when readings are obtained through tattoos or henna. Many manufacturers warn this can be a cause of inaccuracy. Controlled studies are lacking to characterize this effect, and performance may vary by oximeter.
References: Zolfaghari et al, Emerg Med J 2015; Battito, Anesth Analg 1989
Keywords: ink, tattoo, henna, fingerprint