Product Manual

7-4 CARESCAPE V100 Vital Signs Monitor 2036991-001C
NIBP: Description
What is the Difference Between Intra-Arterial and Auscultatory
Methods?
Oscillometric Method
The oscillometric method of determining NIBP is accomplished by a sensitive
transducer which measures cuff pressure and pressure oscillations within the
cuff. These signals are analyzed by the algorithm that uses one of the references
(intra-arterial or auscultatory) to display the NIBP values.
Intra-Arterial Reference
The intra-arterial reference algorithm was developed based on blood pressure
values obtained with an intra-arterial catheter (central aortic).
Auscultatory Reference
The auscultatory reference algorithm was developed based on blood pressure
values obtained with a sphygmomanometer, a stethoscope, and listening to the
Korotkoff sounds.
NOTE: NIBP values in the V100 are based on the oscillometric method of
noninvasive blood pressure measurement taken with a cuff on the arm
of adults/pediatrics (SuperSTAT and Classic technologies), a cuff on the
calf of neonates (SuperSTAT technology), and a cuff on the arm of
neonates (Classic technology). The values correspond to comparisons
with intra-arterial values within ANSI/AAMI SP10 Standards for accuracy
(a mean difference of ± 5 mmHg, and a standard deviation of
< 8 mmHg).
WARNINGS
Connect cuffs and inflation systems only to systems designed
for non-invasive blood pressure monitoring. Devices with luers
and locking luer connectors may be inadvertently connected to
intravascular fluid systems that may allow air to be pumped
into a blood vessel.
The V100 Monitor will not measure blood pressure effectively
on patients who are experiencing seizures or tremors.
Arrhythmias will increase the time required by the NIBP
parameter to determine a blood pressure and may extend the
time beyond the maximum allowed time for the parameter
(120 seconds for adult/pediatric and 85 seconds for neonate).
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.
Do not apply external pressure against cuff while monitoring.
Doing so may cause inaccurate blood pressure values.