SONOTRAX(2009) Series Ultrasonic Pocket Doppler User Manual
43
Chapter 4 Examining
4.1 FH Examining
Before applying the Doppler for fetal heart (FH)
examining, a proper probe should be chosen. The 2.0
MHz obstetrical probe is optimized for deep
penetration and late pregnancy. The 3.0 MHz
obstetrical probe has higher sensitivity and is
optimized for early pregnancy (after 10 weeks
gestation).
NOTE:
In some cases, fetal heart beats at 10 weeks
gestation can not be detected due to the
maternal physical difference and the operator’s
technique.
Perform fetal heart examining using the following
procedures:
1) Confirm the fetus’s position by hand.
2) Determine the probable probe location for optimal
FHR examining.
3) Take out the probe and switch on the Doppler.
4) Apply a certain amount of coupling gel to the
理邦保密文件
EDAN CONFIDENTIAL
To Next Page
Loading...
Need help?
General
