Table 1.
Limitations of 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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