The measurement reference method can be Auscultatory (manual cuff) or Invasive (intra-arterial). For
further information, see the Application Note supplied on the monitor documentation DVD.
In Neonatal mode, to comply with safety standards, invasive is always used as the reference method.
This setting cannot be changed and is not visible in any operating mode.
In Adult and Pediatric mode, to check the current setting, select
setting can only be changed in Configuration Mode.
Preparing to Measure NBP
Connect the cuff to the air tubing.
Plug the air tubing into the red NBP connector. Avoid compression or restriction of pressure
tubes. Air must pass unrestricted through the tubing.
Kinked or otherwise restricted tubing can lead to a continuous cuff pressure, causing blood flow
interference and potentially resulting in injury to the patient.
Make sure that you are using a Philips-approved correct sized cuff and that the bladder inside the
cover is not folded or twisted.
A wrong cuff size, and a folded or twisted bladder, can cause inaccurate measurements. The width
of the cuff should be in the range from 37% to 47% of the limb circumference. The inflatable part
of the cuff should be long enough to encircle at least 80% of the limb.
Apply the cuff to a limb at the same level as the heart. If it is not, you must use the measurement
correction formula to correct the measurement.
The marking on the cuff must match the artery location. Do not wrap the cuff too tightly around
the limb. It may cause discoloration, and ischemia of the extremities.
Inspect the application site regularly to ensure skin quality and inspect the extremity of the cuffed
limb for normal color, warmth and sensitivity. If the skin quality changes, or if the extremity
circulation is being affected, move the cuff to another site or stop the blood pressure
measurements immediately. Check more frequently when making automatic or stat measurements.
Correcting the Measurement if Limb is not at Heart Level
To correct the measurement if the limb is not at heart level, to the displayed value
Add 0.75 mmHg (0.10 kPa) for each centimeter
Add 1.9 mmHg (0.25 kPa) for each inch higher.
, and check whether the
setting is set to
Deduct 0.75 mmHg (0.10 kPa) for each
centimeter lower or
Deduct 1.9 mmHg (0.25 kPa) for each inch
10 Monitoring NBP