O2 Saturations Pulse Oximetry & ABG’s

Question 1

What does PaO2 stand for

Answer 1

Partial pressure of O2 dissolved in the blood
Measured in mmhg or Kpa

Question 2

What does SaO2 stand for

Answer 2

Arterial blood saturation of O2
Measured by taking a blood gas

Question 3

What does PH stand for

Answer 3

Acidity or alkali

Question 4

What does SpO2 stand for

Answer 4

Percentage of available haemoglabin which is saturated
Measured non invasively using pulse oximetry

Question 5

How does a pulse oximetry work

Answer 5

Oxynaemoglobin & deoxyhaemoglobin absorb & reflect light differently
Attached to finger, toe or earlobe
Gives instant feedback of arterial oxygen saturation

Question 6

What affects the sensor on a pulse oximetry

Answer 6

Movement
Icotine stains
Clubbing
Bruising
Nail polish

Question 7

What is an ABG’s

Answer 7

Diagnostic test performed on blood taken for artery in the wrist or ear with anaesthetic cream

Gives accurate info on PH, PaO2, SaO2 & PaCO2