Agilent Technologies Heartstream FR2, User Manual

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E-2
Glossary of Terms
Defibrillation
........................ Termination of cardiac fibrillation by applying electrical energy
Defibrillation Charge ............ Electrical energy stored in the capacitor of the H
EARTSTREAM
FR2 as it arms for
shock delivery.
Defibrillation Pads ................ The self-adhesive electrode pads applied to the patient’s bare chest and used to
detect the patient’s heart rhythm and transfer the defibrillation shock. Only
H
EARTSTREAM
defibrillation pads can be used with the FR2.
Defibrillation Shock
.............. See SMART Biphasic Waveform.
ECG ...................................... Electrocardiogram, a display or printout of the electrical rhythm of the heart as
detected through defibrillation electrode pads.
Event .................................... An action recognized or performed by the H
EARTSTREAM
FR2 as a step in the
sequence of using the device in an incident. Examples include: applying the pads
and connecting them to the H
EARTSTREAM
FR2, analyzing heart rhythm, delivering a
shock, etc.
Fibrillation
............................ A disturbance of the normal heart rhythm that results in chaotic, disorganized
activity that cannot effectively pump blood. Ventricular fibrillation (fibrillation in
the lower chambers of the heart) is associated with sudden cardiac arrest.
Heart Rhythm
(ECG) Analysis
..................... A system used by the FR2 to determine if the patient’s heart rhythm is shockable —
ventricular fibrillation (VF) or certain ventricular tachycardias (VTs). See SMART
Analysis.
Impedance
............................ Electrically, this is the total opposition offered by the body to the flow of the
electrical shock waveform delivered by the H
EARTSTREAM
FR2. The FR2
automatically monitors the electrical impedance between the defibrillation pads
placed on the patient’s bare chest, and adjusts the shock waveform appropriately.
Incident
................................ The series of events involved in treating a patient with the H
EARTSTREAM
FR2.
Infrared
Communications
.................. A method of sending information using a special part of the light spectrum. It is used
to transmit information to and from the H
EARTSTREAM
FR2 and another FR2 or a
computer running C
ODE
R
UNNER
software.
Manual Charge
..................... A feature of the advanced mode used by an authorized ALS-certified responder that
allows the user to arm the H
EARTSTREAM
FR2 for shock delivery.
Manual Disarm
.................... A feature of the advanced mode used by an authorized ALS-certified responder that
allows the user to dump the H
EARTSTREAM
FR2 charge internally.
Monitoring
........................... A mode of background analysis to determine if patient rhythm has changed to a
shockable rhythm.