Ensuring Safe TEE Temperatures
To ensure patient safety and to avoid unnecessary interruption while scanning,
follow these suggestions:
• Ensure distal-tip-temperature accuracy by entering an accurate patient core
temperature.
• Decrease the transducer temperature by using the Output Power knob
before introducing a TEE transducer to decrease acoustic output, and keep
the control at the lowest possible setting during an exam.
• Use the TEE Manual Auto-Cool Safety feature to enter the patient
temperature if it is above 37°C (98.6°F) as described in "Entering Patient
Temperature" on page 256.
Manual Auto-Cool Feature
Use the TEE Manual Auto-Cool safety feature to enter above-normal patient
temperatures. When the temperature display is enabled, you can see both the
patient temperature and the distal tip temperature while scanning.
NOTE
The patient temperature displayed on the ultrasound screen is always either
37°C (98.6°F) or the temperature that you manually enter. The system does not
monitor or report the actual patient temperature.
If the distal tip temperature reaches 41°C (105.8°F), a warning message appears
and the transducer temperature is displayed in inverse video. If the temperature
reaches 42.5°C (108.5°F), a warning appears with the patient and the transducer
temperatures, and the system stops imaging until the distal tip cools to below
42°C (107.6°F). If the distal tip temperature reaches 43.5°C (110.3°F), the system
shuts down. You may need to restart the system by turning it on.
WARNINGS
• To avoid the risk of esophageal burn for adult patients, minimize the time
spent imaging at distal tip temperatures in excess of 42°C (107.6°F).
iU22 User Manual
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Transesophageal Transducers
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