scanning. If a patient’s temperature is above normal, entering a temperature can
avoid exposing the patient to excessive temperatures.
Always check the patient’s temperature before inserting a TEE transducer. If it
is above normal, whether from fever or therapeutic heating from a cardiac bypass
heart-lung machine, perform the procedure in "Entering Patient Temperature"
on page 256 before inserting the transducer. Also, follow that procedure if a
patient’s temperature rises during a study.
Measure the patient’s core temperature, or more specifically, the actual
temperature in the esophagus. For patients undergoing surgery, determine the
temperature in the esophagus by direct measurement or by monitoring the
temperature of blood returning from the bypass pump heat exchanger.
For closed-chest situations, rectal temperature is the best estimate of core
temperature. You can also use oral temperatures, even though they can be one
degree lower than the core temperature. If you measure an auxiliary temperature,
which can be two degrees lower than the core temperature, add one or two
degrees.
Entering Patient Temperature
1. If necessary, select the TEE transducer.
2. Display the TEE touch screen by touching TEE.
3. Turn Pat Temp to enter the patient's measured temperature.
NOTE
Each time you turn off or reset the system, or enter a new patient ID, the
system assumes that the patient temperature is 37°C (98.6°F).
Resuming Imaging After Auto-Cool
If the distal tip temperature drops below 42.5°C (108.5°F), the system resumes
imaging. If the Auto-Cool message persists longer than 1 minute or an error
message appears, contact your Philips service representative.
iU22 User Manual
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4535 614 45861
Transesophageal Transducers
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