Peak Performance - Investigations of respiratory disease - Pulse oximetry

4 important questions on Peak Performance - Investigations of respiratory disease - Pulse oximetry

How does pulse oximetry work?

The probe is placed on the patient's ear lobe or finger. Measures the absorbance of light by oxygenated and deoxygenated blood.
Oxygenated blood absorbs infrared. Deoxygenated blood absorbs red light.

What does pulse oximetry measure?

The oxygen saturation of the Hb.

What is the normal reading of a pulse oximetry?

>95%
  • Higher grades + faster learning
  • Never study anything twice
  • 100% sure, 100% understanding
Discover Study Smart

What may affect the readings of a pulse oximetry test?

Anaemia, cold extremities.

The question on the page originate from the summary of the following study material:

  • A unique study and practice tool
  • Never study anything twice again
  • Get the grades you hope for
  • 100% sure, 100% understanding
Remember faster, study better. Scientifically proven.
Trustpilot Logo