Mindray BeneHeart D3, Руководство оператора

Страница: 98 / 186

13-2
z
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.
z
If you doubt the NIBP readings, determines the patient’s vital signs by alternative means and then verify
that the equipment is working correctly.
13.3 Measurement Limitations
Measurements are impossible with heart rate extremes of less than 40 bpm or greater than 240 bpm, or if the patient is
on a heart-lung machine.
The measurement may be inaccurate or impossible,
„
If a regular arterial pressure pulse is hard to detect;
„
With excessive and continuous patient movement such as shivering or convulsions;
„
With cardiac arrhythmias;
„
Rapid blood pressure changes;
„
Severe shock or hypothermia that reduces blood flow to the peripheries;
„
Obesity, where a thick layer of fat surrounding a limb dampens the oscillations coming from the artery.
13.4 Measurement Modes
There are three modes of measuring NIBP:
„
Manual: measurement on demand.
„
Auto: continually repeated measurements at set intervals.
„
STAT: continually rapid series of measurements over a five minute period, then return to the previous mode.
13.5 Measuring Procedure
13.5.1 Preparing for NIBP Measurement
1. Verify that the patient category is correct. Change it if necessary.
2. Plug the air tubing into the equipment’s NIBP connector.
3. Select a correct sized cuff by referring to the limb circumference marked on the cuff. The width of the cuff should
be 40% (50% for neonates) of the limb circumference, or 2/3 of the upper arm’s length. The inflatable part of the
cuff should be long enough to encircle at least 50% to 80% of the limb.
4. Apply the cuff to an upper arm or thigh of the patient and make sure the Φ or marking on the cuff matches the
artery location. Do not wrap the cuff too tightly around the limb. It may cause discoloration, and ischemia of the
extremities. Make sure that the cuff edge falls within the marked range. If it does not, use a cuff that fits better.
5. Connect the cuff to the air tubing. Avoid compression or restriction of pressure tubes. Air must pass unrestricted
through the tubing.
6. Switch the Mode Select knob to Monitor.