3 Basic Operation
53
Repositioning Transducers
A patient possibly wears transducers for long periods without interruption. In rare cases, skin
irritations may occur if a transducer is attached to one location for a longer period. To ensure there are
no adverse effects on the patient's skin, inspect the transducer application site at least every three
hours. If the skin quality changes, move the transducer to another site.
The ultrasound transducer is often repositioned to follow the fetal heart as part of the normal
monitoring process, but this is not so for the Toco transducer. Therefore, remember to check its
application site (between contractions) at least every three hours.
To reduce the risk of skin irritations, do not allow a cleaning or disinfecting agent to remain on the
transducer. Follow all instructions that accompany the specific cleaning and disinfecting agents you are
using. Remove agent residues with a cloth dampened in water before applying a transducer to a patient.
See “Care and Cleaning” on page 261 for further information, and a list of approved agents.
Connecting a Transducer to the Monitor
1 SpO
2
socket
2 Noninvasive blood pressure socket
3 Fetal sensor sockets
You can plug a fetal transducer, an ECG/IUP patient module, an Avalon CL or
Avalon CTS Cableless Fetal Transducer System interface cable (red connector), or
an external event marker into any of the four fetal sensor sockets marked by the
fetal symbol, or "Fetal Sensors" (depending on geography).
For measuring maternal SpO
2
, connect the sensor to the socket marked with the
SpO
2
symbol or "SpO
2
" (depending on geography).
For maternal noninvasive blood pressure, connect the cuff to the socket marked
with the NBP symbol or "NBP" (depending on geography).
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