Pulse Oximeter - ZOLL Z Vent Operator's Manual

Do not use in MRI environment unless MRI marking is present.
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Do not operate the ventilator on a patient when the USB port is connected to any other
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device (the USB port is only for servicing the ventilator).
The ZOLL-supplied patient circuit's labeling provides the resistance and compliance values
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for the circuits under normal operating conditions. If added accessories are used
(e.g. HME, filters etc.), you should assure they do not degrade the performance of the
device.

Pulse Oximeter

Do not use the pulse oximeter as an apnea monitor.
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A pulse oximeter should be considered an early warning device. As a trend towards patient
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deoxygenation is indicated, blood samples should be analyzed by a laboratory co-oximeter
to completely understand the patient's condition.
Measurements: if the accuracy of any measurement does not seem reasonable, first check
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the patient's vital signs by alternate means and then check the pulse oximeter for proper
functioning.
Inaccurate measurements may be caused by:
Interfering Substances: carboxyhemoglobin may erroneously increase readings. The level of
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increase is approximately equal to the amount of carboxyhemoglobin present. Dyes, or any
substance containing dyes, that change usual arterial pigmentation may cause erroneous
readings.
Alarms: Check alarm limits each time the pulse oximeter is used to ensure that they are
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appropriate for the patient being monitored.
Loss of pulse signal can occur in any of the following situations:
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9650-002360-01 Rev. A
Incorrect sensor application or use.
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Significant levels of dysfunctional hemoglobin (e.g. carboxyhemoglobin or
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methemoglobin).
Intra-vascular dyes such as indocyanine green or methylene blue.
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Exposure to excessive illumination, such as surgical lamps (especially ones with a
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xenon light source), bilirubin lamps, fluorescent lights, infrared heating lamps, or
direct sunlight (exposure to excessive illumination can be corrected by covering the
sensor with a dark or opaque material).
Excessive patient movement.
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Venous pulsations.
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Placement of a sensor on an extremity with a blood pressure cuff, arterial catheter,
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or intravascular line.
The pulse oximeter is defibrillator-proof. The pulse oximeter can be used during
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defibrillation, but the readings may be inaccurate for a short time.
The sensor is too tight.
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Excessive illumination from light sources such as a surgical lamp, a bilirubin lamp,
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or sunlight.
A blood pressure cuff is inflated on the same extremity as the one with an SpO
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sensor attached.
The patient has hypotension, severe vascoconstriction, severe anemia, or
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hypothermia.
Arterial occlusion proximal to the sensor.
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The patient is in cardiac arrest or is in shock.
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ZOLL Z Vent Ventilator Operator's Guide
General Information
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