13 Monitoring Triple FHRs
Common problems that may occur when monitoring FHR using ultrasound are listed in "Monitoring
FHR and FMP Using Ultrasound" on page 141.
The following problem may occur when monitoring triplets.
For more information, see "Additional Information" on page 150.
The question mark is
printed repeatedly, and
appears on the screen
and the INOP
More than one transducer is
recording the same FHR, or a fetal
transducer records the same heart
rate as the MHR.
trace separation switched off
Reposition one or more
ultrasound transducer, as
for Coincidence INOP" on