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Table 1 Limitations of pulse oximetry

From: Pulse oximetry

Shape of oxygen dissociation curve

Dyshemoglobins

- Carboxyhemoglobin

- Methemoglobin

Dyes

Low perfusion state

Skin pigmentation

Anemia

Nail polish

Motion artifact

Limited knowledge of the technique

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Critical Care

ISSN: 1364-8535