Welch Allyn 246 Propaq CS Vital Signs Monitor v.3.7X - User Manual - Manual (Page 26)

22 Monitoring Welch Allyn Propaq CS Vital Signs Monitor
• Impedance pneumography (RESP) is not recommended for use with high frequency
ventilation.
• Since RESP is derived from the same leads as the ECG channel, the Propaq CS
monitor determines which signals are cardiovascular artifact and which signals are a
result of respiratory effort. If the breath rate is within five percent of the heart rate or
a multiple or sub-multiple of the heart rate, the monitor may ignore breaths and
trigger an apnea alarm.
• When monitoring RESP it is highly recommended that you use SpO
2
monitoring as a
backup monitoring method.
• It is recommended that Propaq CS monitor respiratory measurements not be made in
close proximity to electrically radiated equipment. When the Propaq CS monitor is
operated per EN 60601-1-1 (radiated RF immunity 3 V/m), field strengths above 2 V/m
may cause erroneous measurements at various frequencies.
• The Propaq CS monitor counts as “breaths” respiratory efforts that are larger than
two times background cardiovascular artifact.
• Even though the Propaq CS monitor contains fully isolated patient-connected
circuitry, it has not been specially designed for direct application on a patient’s heart.
• Use only with accessories provided or recommended in the Welch Allyn Products and
Accessories booklet.
WARNING High-intensity radio frequency (RF) energy from external sources,
such as an improperly connected electrosurgical unit, can induce heat into
electrodes and cables which can cause burns on the patient. Reading errors and
damage to equipment may also result. This hazard can be reduced by (1) avoiding
the use of small ECG electrodes, (2) selecting ECG electrode attachment points
remote from the surgical site and from the electrosurgical return electrode, (3)
using electrosurgical return electrodes with the largest practical contact area, and
(4) assuring proper application of the electrosurgical return electrode to the
patient.
WARNING Verify patient mode. Incorrect patient mode may result in inaccurate
heart rates and inappropriate alarm settings.
WARNING To help prevent injury, use the provided garment clips to route the
ECG cables away from the patient’s head.
WARNING Use of ECG cables with loose or faulty detachable lead wires may
cause erratic behavior of the ECG waveform, SpO
2
(C-LOCK), and NIBP
(Smartcuf) due to intermittent ECG lead wire connections.
WARNING Use only ECG safety cables that are designed so that they cannot
accidently be plugged into an ac mains outlet or make contact with other
hazardous electrical potentials including earth ground. To prevent damage during
defibrillation, don’t use ECG cables without 1 k
Ω series resistors.
WARNING Before you use a Propaq CS monitor on a new patient, always turn it
off for a few seconds, then turn it on again. This clears the prior patient’s trend
values and alarm limit settings.
Caution To protect the Propaq CS monitor from damage during defibrillation, for
accurate ECG information, and for protection against noise and other
interference, use only ECG electrodes and cables specified or supplied by Welch
Allyn (these cables have the required current-limiting resistors). Follow
recommended application procedures.