60
Now, place t he sensor head at t he pre-
m arked I C4- L posit ion, orient ing t he
sensor body t owards t he pat ient head on
t he st ernum .
Do not apply st rong pressure t o t he sensor
head when applying pat ch on t he pat ient .
Ensure proper adherence of sensor head t o
chest by pressing on coupling ring around
t he sensor head.
