ZOLL M Series Defibrillator Rev YH - Manual (Page 12)

M S ERIES O PERATOR ’ S G UIDE
1-4
Defibrillator Function
The M Series products contain a DC defibrillator capable
of delivering up to 360 joules of energy. It may be used in
synchronized mode to perform synchronized
cardioversion by using the R-wave of the patient’s ECG
as a timing reference. The unit uses paddles or
disposable, pre-gelled, MFE Pads for defibrillation.
Intended Use — Manual Operation
Use of the M Series products in the manual mode for
defibrillation is indicated on victims of cardiac arrest
where there is apparent lack of circulation as indicated
by:
• Unconsciousness
• Absence of breathing
• Absence of pulse.
This product should be used only by qualified medical
personnel for converting ventricular fibrillation and rapid
ventricular tachycardia to sinus rhythm or other cardiac
rhythms capable of producing hemodynamically
significant heart beats.
Intended Use — Semiautomatic Operation (AED)
The M Series products are designed for use by
emergency care personnel who have completed training
and certification requirements applicable to the use of a
defibrillator where the device operator controls delivery
of shocks to the patient.
They are specifically designed for use in early
defibrillation programs where the delivery of a
defibrillator shock during resuscitation involving CPR,
transportation, and definitive care are incorporated into a
medically-approved patient care protocol.
The M Series products must be prescribed for use by a
physician or medical advisor of an emergency response
team.
Use of the device in the Semiautomatic mode for
defibrillation is indicated on victims of cardiac arrest
where there is apparent lack of circulation as indicated
by:
• Unconsciousness
• Absence of breathing
• Absence of pulse.
Specifications for the ECG rhythm analysis function are
provided at the end of this section.
Intended Use — CPR Monitoring
The CPR monitoring function provides visual and audio
feedback designed to encourage rescuers to perform
chest compressions at the AHA/ERC recommended rate
of 100 compressions per minute. Visual prompts
encourage a compression depth of 1.5 to 2 inches (3.8 to
5.0 cm) for adult patients.
The CPR monitoring function is not intended for use on
patients under 8 years of age.
Semiautomatic Operation Contraindications for Use
The rhythm analysis function may not reliably identify
ventricular fibrillation in the presence of an implantable
pacemaker. Inspection of the electrocardiogram and
clinical evidence of cardiopulmonary arrest should be the
basis for any treatment of patients with implantable
pacemakers.
Do not use the rhythm analysis function during patient
movement on a stretcher or in an ambulance or other
conveyance. A patient must be motionless during ECG
analysis. Do not touch the patient during analysis. Cease
all movement via stretcher or vehicle prior to analyzing
the ECG. If using the device in an emergency vehicle,
bring the vehicle to a halt before activating the analysis
function.
Note: Do not use the unit’s AED function on patients
under 8 years of age.
Defibrillator Complications
Inappropriate defibrillation or cardioversion of a patient
(e.g., with no malignant arrhythmia) may precipitate
ventricular fibrillation, asystole, or other dangerous
arrhythmias.
Defibrillation without proper application of electrode pads
or paddle electrolyte gel may be ineffective and cause
burns, particularly when repeated shocks are necessary.
Erythema or hyperemia of the skin under the paddles or
MFE Pads often occurs; this effect is usually enhanced
along the perimeter of the paddle or electrode. This
reddening should substantially lessen within 72 hours.
Defibrillator Output Energy
The M Series products may deliver up to 360 joules into
a 50 ohm impedance. The energy delivered through the
chest wall, however, is determined by the patient’s
transthoracic impedance. An adequate amount of
electrolyte gel must be applied to the paddles and a
force of 10-12 kilograms must be applied to each paddle
in order to minimize this impedance. If MFE Pads are
used, make sure that they are properly applied. (Refer to
the instructions on the Multi-Function Electrode
package).