Pulse oxymetry detects inaccurately in presence of – a) Hyperbilirubinemiab) Nail polishc) Methemoglobinemiad) Skin pigmentation
Inaccurate reading in pulse oximeter can be caused by carboxyhaemoglobinemia, methaemoglobinemia, anaemia, poor peripheral pulsation, hypovolemia & vasoconstriction, vasodilatation, nail polish, shivering, skin pigmentation, and SpO2 below 60%.
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