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Non-invasive blood pressure
CAUTION
Devices that exert pressure on tissue have been associated
with purpura, skin avulsion, compartmental syndrome,
ischemia, and/or neuropathy. To minimize these potential
problems, especially when monitoring at frequent intervals
or over extended periods of time, make sure the cuff is
applied appropriately and examine the cuff site and the limb
distal to the cuff regularly for signs of impeded blood flow.
Periodically check patient limb circulation distal to the cuff.
Check frequently when using auto NIBP in 1 and 2 minute
intervals. The 1 and 2 minute intervals are not recommended
for extended periods of time.
NIBP measurement limitations
●
A patient's vital signs may vary dramatically during the use of cardiovascular
agents such as those that raise or lower blood pressure or those that increase
or decrease heart rate.
●
Although automated NIBP is generally safe and accurate, it has some limitations. It
may be difficult to obtain reliable readings under the following circumstances:
￭
Shock accompanied by low blood pressure and pulse.
￭
Variations in blood pressure and pulse rate.
￭
In patients with anatomic abnormalities, such as calcified (hardened) arteries
or subclavian compression.
￭
Compression of the cuff caused by shivering, seizures, arm movement, or
bumping against the cuff.
●
Proper sizing and position of the cuff are essential to obtaining reliable readings:
￭
Too large a cuff is better than too small a cuff, which may yield falsely high
readings.
￭
The cuff should also fit properly over the brachial artery (or whatever artery is
being used) so that the cuff is sufficiently sensitive to vibrations in the artery.
NIBP points to note
●
This equipment is suitable for use in the presence of electrosurgery.
●
Use the appropriate size NIBP cuff for the patient (adult, child, or infant).
●
NIBP can be measured by multiple acquisition modules. Connect one NIBP cable
only.
●
Depending on the NIBP module used, not all NIBP measurements and settings
are available to view or change.
●
The measurement site, patient’s position (standing, sitting, lying down), exercise, or
physiologic condition can affect the NIBP readings.
●
With mobile patients and when taking routine resting blood pressure, ensure that:
￭
The patient is comfortably seated, with their legs uncrossed and feet flat on
the floor.
￭
The patient’s arms and back are supported.
￭
The middle of the cuff is at the level of the right atrium of the patient’s heart.
●
Also consider the following recommendations:
￭
Allow 5 minutes to pass before taking the first measurement.
2062971-001 CARESCAPE Modular Monitors 221