Physio-Control LIFEPAK 15 - Manual (Page 82)

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LIFEPAK 15 Monitor/Defibrillator Operating Instructions
Monitoring Noninvasive Blood Pressure
NIBP Monitoring Warnings and Caution
How NIBP Monitoring Works
The NIBP monitor uses the oscillometric measurement technique. The oscillometric technique does
not use Korotkoff sounds to determine blood pressure; rather, it monitors the changes in pressure
pulses that are caused by the flow of blood through the artery. The NIBP monitor inflates the cuff
around the patient’s arm to a value that occludes the artery, and then deflates the cuff in steps.
When blood starts to flow through the artery, the increasing blood flow causes the amplitude of the
pressure pulses in the cuff to increase. As the NIBP monitor steps the pressure down, the pulses
WARNINGS
POSSIBLE LOSS OF INTRAVENOUS ACCESS AND INACCURATE INFUSION RATE
Do not apply the blood pressure cuff on an extremity that is used for an intravenous
infusion. Patency of the intravenous infusion may be affected by blood pressure
measurement due to the occlusion of blood flow.
POSSIBLE CIRCULATION IMPAIRMENT
Prolonged, continuous use of a blood pressure cuff may impair blood flow to the
extremity. Check circulation regularly and loosen or reposition the cuff if changes in
circulation occur.
INACCURATE READINGS HAZARDS
POSSIBLE INACCURATE BLOOD PRESSURE READINGS
Do not alter the NIBP monitor’s pneumatic tubing. Altering NIBP tubing may cause
improper performance and may void the warranty. Avoid compression or restriction of
pressure tubes.
POSSIBLE INACCURATE BLOOD PRESSURE READINGS
Using NIBP accessories not recommended by Physio-Control may cause the device to
perform improperly and invalidate the safety agency certifications. Use only the
accessories that are specified in these operating instructions.
POSSIBLE INACCURATE OXYGEN SATURATION READINGS
Do not perform NIBP measurement on an extremity used for oxygen saturation
monitoring. Oxygen saturation measurement is affected by blood pressure
measurement due to the occlusion of blood flow.
CAUTION
EQUIPMENT DAMAGE
Do not inflate a cuff unless it is placed on an extremity.