Mindray BeneHeart D2, Operator'S Manual

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Defibrillator/Monitor Operator’s Manual 13 - 1
13
Monitoring NIBP
13.1 NIBP Introduction
Automatic non-invasive blood pressure monitoring uses the oscillometric method of measurement. It is
intended for adult, pediatric and neonatal patients. To understand how this method works, we’ll compare it to
the auscultative method.
With auscultation, the clinician listens to the blood pressure and determines the systolic and diastolic pressures.
The mean pressure can then be calculated with reference to these pressures as long as the arterial pressure
curve is normal.
Since the equipment cannot hear the blood pressure, it measures cuff pressure oscillation amplitudes.
Oscillations are caused by blood pressure pulses against the cuff. The oscillation with the greatest amplitude is
the mean pressure. Once the mean pressure is determined, the systolic and diastolic pressures are calculated
with reference to the mean.
Simply stated, auscultation measures systolic and diastolic pressures and the mean pressure is calculated. The
oscillometric method measures the mean pressure and determines the systolic and diastolic pressures.
As specified in ISO 80601-2-30, NIBP monitoring is allowed while an electrosurgical operation is in progress or a
defibrillation shock is being delivered.
NIBP monitoring is intended for adult, pediatric and neonatal patients.
NOTE
•
Blood pressure measurements determined with this device are equivalent to those obtained by a
trained observer using the cuff/stethoscope auscultatory method or an intra-arterial blood pressure
measurement device, within the limits prescribed by the American National Standard, Manual,
electronic, or automated sphygmomanometers.
13.2 NIBP Safety Information
WARNING
•
Be sure to select the correct patient category setting for your patient before measurement. Do not
apply the higher adult settings for pediatric or neonatal patients. Otherwise it may present a safety
hazard.
•
Do not measure NIBP on patients with sickle-cell disease or any condition where skin damage has
occurred or is expected.
•
Use clinical judgment to determine whether to perform frequent unattended blood pressure
measurements on patients with severe blood clotting disorders because of the risk of hematoma in
the limb fitted with the cuff.
•
Do not use the NIBP cuff on a limb with an intravenous infusion or arterial catheter in place. This
could cause tissue damage around the catheter when the infusion is slowed or blocked during cuff
inflation.
•
NIBP reading can be affected by the measurement site, the position of the PATIENT, exercise, or the
patient's physiologic condition. If you doubt the NIBP readings, determines the patient’s vital signs
by alternative means and then verify that the equipment is working correctly.
•
Do not use the NIBP cuff on the arm on the side of a mastectomy or lymph node clearance.
•
Continuous CUFF pressure due to connection tubing kinking may cause blood flow interference and
resulting harmful injury to the patient.
•
NIBP diagnostic significance must be decided by the physician.