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90207/90217 ABP Monitors
Preparing the Patient and Precautions for Use
•
Blood pressure measurements determined with this device are equivalent to those
!
obtained by a trained observer using the cuff/stethoscope auscultation method,
within the limits prescribed by the American National Standard, Electronic or
automated sphygmomanometers.
The fifth Korotkoff sound was used to determine overall efficiency.
•
As in manual auscultatory methods, accurate readings might not always be
achieved under some conditions. Patient movement, the position of the cuff
relative to the level of the heart, extreme heart rates and blood pressures, various
arrhythmias, and the subject's physiological condition and other factors can hinder
an accurate reading. Vibration, such as that in a moving automobile, is an
environmental problem that can affect readings.
•
When some of the above factors prevent an accurate reading, an event code is
provided to indicate the reason for the missed blood pressure reading. When only
a single blood pressure parameter (systole, diastole, or mean arterial pressure) is
obscured and the other two parameters are measured, the obscured parameter
can be replaced with a computed value.
•
If such a value is computed in the 90217, it appears on the report in angle
brackets, e.g. < value >. On the monitor display, dashes are displayed instead of
the estimated value. The ratio used in the formula is determined by the previous
successful measurements of the pressure, rather than a fixed ratio.
•
Consult a physician for interpretation of pressure measurements.
CAUTION:
•
The ABP unit is not for use with defibrillators. Please remove the ABP unit
prior to use with a defibrillator.
•
For patients in shock, indirect methods of measuring pressure
(auscultatory, oscillometric, Doppler) may not be reliable due to peripheral
vascular changes. In some cases peripheral pulses or Korotkoff sounds
may be diminished or disappear in spite of adequate blood pressure. Direct
blood pressure measurements (invasive) should be considered in patients
with signs of shock or for any patient who becomes unstable for unknown
reasons.
•
The ABP unit might not perform to specifications if stored or used outside
the following ranges:
Operating: temperature between 0
relative humidity between 10% and 95%.
Storage: temperature between -30
relative humidity between 10% and 95%.
After the monitor has been initialized, prepare the patient for monitoring as follows:
1.
Turn on the monitor (wait for the monitor to perform self-tests). When the LCD displays the
current time, the monitor is ready for operation.
2.
Strap the monitor to the patient on the hip opposite the side on which the cuff is worn. Secure the
monitor using the patient's own belt or the ABP pouch strapped over the opposite shoulder.
When using the shoulder strap, use the belt supplied with the monitor or the patient's belt to
provide additional security.
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