installing disposableschapter 6 6-56-4
Warning
• Prime solutions containing acetate ions such as Isolyte-S, Normosol-R,
or Plasmalyte-A can cause damage to the PCO2 sensor. If the pH
channel reads less than 7.00 after the sensor is placed in the circuit,
you should either recirculate the prime solution using a CO2-free
sweep gas or add sufficient buffer to raise the pH of the prime above
7.00. Exposure to acetate-containing prime solutions below pH 7.00 for
longer than a few minutes can cause signicant PCO2 inaccuracy.
• Make sure all luer lock connections are securely tightened before
priming the shunt/purge line. Connections that aren’t secure can
result in a leak.
• Exposure of the shunt sensor to prime solutions and/or blood with pH
less than 7.0 or greater than 7.8 pH units can interfere in the accurate
measurement of potassium.
• Exposure of the shunt sensor to prime solutions and/or blood with
sodium measurement less than 120 or greater than 160 mEq/L can
interfere in the accurate measurement of potassium.
• The presence of air bubbles in CDI Shunt Sensors can affect the
results. Intermittent bubbles, once removed from the CDI Shunt
Sensor, will not affect its long-term accuracy.
5 Adjust the monitor cabling to clear excess cable from the work area.
Installing a CDI Shunt Sensor into the Shunt
Bypass Line
Warning
• Do not allow the CDI Shunt Sensor to dry out. Make sure the circuit
has prime uid in it before attaching the Shunt Sensor. Exposure to
air for more than a few minutes can damage the sensor and cause
inaccurate results.
Caution
• Do not remove the CDI Shunt Sensor from the cable-head to make sensor
connections.
1 Stop the pump and/or clamp off the Shunt Bypass Line.
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