LOINC long common name : Perfusion index Blood Preductal Pulse oximetry;
LOINC short name : Perfusion index Bld Preductal PulseOx;
LOINC description : The perfusion index measures the strength of the pulse and is the ratio of the pulsatile
and nonpulsatile components of the pulse oximetry signal. Preductal measurement indicates
that the measurements are taken using a pulse oximetry device placed in an anatomical
location whose blood supply originates from the aorta before the junction of the aorta
with the ductus arteriorsus (usually the right hand).;