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Invasive Pressure
Welch Allyn 50 Propaq Encore Reference Guide
Invasive Pressure
This section applies only to Propaq Encore Models 204EL and 206EL. If you don't have one of these
models, you can skip this section.
Intended Use
The Propaq Encore invasive pressure channel is intended for measuring arterial, venous, and
intracranial pressures using invasive transducers with 5 µV/V/mmHg sensitivity. The
Propaq Encore can be used with many types of transducers, including nondisposable,
disposable dome, and fully disposable.
Invasive Pressure Connectors and Transducers
Recommended transducers for use with the Propaq Encore are listed in the Welch Allyn
Products and Accessories booklet. Do not use light-sensitive disposable transducers.
Transducers must be used according to your hospital's standards and the manufacturer's
recommendations. Always refer to the manufacturer's Directions for Use before using the
transducer.
Warning If electrocautery is used, always avoid using any transducer with a
conductive (metal) case that is electrically connected to its cable shield. Using
a conductive transducer case with such a shield connection risks high-
frequency burns at the ECG electrodes if the transducer case becomes earth
grounded.
Although complete disconnections of invasive pressure transducers will be
detected by the normal alarm functions, partial disconnection will not be
detected, nor will the use of some incompatible transducers. The user must
exercise reasonable measures to ensure that approved transducers are used
and that pressure transducers are connected properly.
Before you use a Propaq on a new patient, always turn it off for a few seconds,
then turn it on again. This clears the prior patient’s trend values, alarm limit
settings, and NIBP cuff inflation target.