Graham Field 14423-8 Manual Do Utilizador

14423-INS-LAB-RevD11

FETAL HEART (FH) MONITORING

FH Monitoring with 2.0 MHz Water-Resistant Probe
Refer to picture at right. The au-
dio fetal heart beat is sent out via
the built-in speaker or attached
earphone.
1. Palpate for the fetus position

to find the best location to
place the probe and hear the
fetal heart rate.

2. Apply a liberal amount of gel to the probe head.
3. Place the probe head on the desired location. Assure

that good coupling of the gel to the skin is achieved; the
Fetal Heart rate will not be heard if adequate gel is not
used and air is between the probe head and skin.

4. Slowly move the probe until a clear heart rate is heard.
5. Adjust the volume to the desired level.

WARNING: It is not possible to monitor FHR unless

an audible fetal heart signal is present. The fetal

pulse can be distinguished from the maternal pulse

by feeling the mother’s pulse during the examination.

WARNING: For best quality audio, place the probe in

the optimum position.

WARNING: For best quality audio, avoid positions

with strong placental sounds (swishing) or fetal cord

pulse (indistinct pulse at fetal rate).

WARNING: If the fetus is in the cephalic position and

the mother is supine, the clearest heart sound will

normally be found on the midline below the umbili-

cus. During monitoring, prolonged lying in the supine

position should be avoided. Sitting up or lateral posi-

tions are preferable and may be more comfortable for

the mother.