11
Perfusion Index
The
Activ8rlives
Pulse Oximeter2
also measures the
Perfusion Index
(PI). This is the
ratio of the pulsatile blood
flow to the non
-
pulsatile or static blood in peripheral tissue. Perfusion
Index thus represents a non
-
invasive
measure of peripheral perfusion that can be continuously and non
-
invasively obtained from the
Activ8rlives
Pulse Oximeter2.
To make informed patient management decisions, clinicians often need to be aware of
changes
in peripheral perfusion and circulatory status.
Optimal pulse oximetry monitoring accuracy is dependent on the selection of a monitoring site
(e.g. fingertip,
hand, toe, foot, forehead, ear) characterised by good perfusion with oxygenated blood. The
Activ8rlives
Pulse
Oximeter2
now records the PI to ensure that a good reading is taken. Once the Plethysmograph (pulse rate
waveform) has become stable it is then time to take your reading. See
Page 19
for more details but keeping still,
calming your heart rate and breathing, and having warmer hands helps get a more accurate pulse oximeter
reading.
