Question 11 (part 2) · LDEK · Breathing disorders and airway management
Reading the haemoglobin oxygen saturation values may produce false results in the following cases:
1) vasoconstriction.
2) haemoglobin oxygen saturation values below 83%.
3) haemoglobin oxygen saturation values in the range of 86-89%.
4) presence of nail polish.
5) methemoglobinaemia.
The correct answer is:
2) haemoglobin oxygen saturation values below 83%.
3) haemoglobin oxygen saturation values in the range of 86-89%.
4) presence of nail polish.
5) methemoglobinaemia.
The correct answer is:
- A. 1,2,4.
- B. 2,5.
- C. 3,4,5.
- D. 1,2,4,5.
- E. 1,3,4,5.
Hint
Pulse oximeters rely on light absorption by pulsatile arterial blood; think of weak pulsation, light-blocking obstacles, abnormal haemoglobins and calibration limits.
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