F15 Series Fetal & Maternal Monitor User Manual Fetal Monitoring
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Figure 7-2 Testing a US Transducer
4 Check that the value on the display shows this change in FHR.
If a US transducer fails the test, repeat this test with another transducer. If the second one passes the
test, defect of the first transducer is confirmed. Replace it with a good one. If the second transducer
fails the test as well, contact the manufacturer for service.
7.3 Monitoring FHR with DECG
The fetal spiral electrode can be used when amniotic membranes are adequately ruptured and
sufficient cervical dilatation is ensured. The fetal electrode tip is designed to penetrate the epidermis
of the fetus; therefore, trauma, hemorrhage and/or infection can occur. The electrode should be used
with strict adherence to aseptic technique.
The fetal spiral electrode should not be applied to the fetal face, fontanels or genitalia.
Do not apply the fetal spiral electrode when placenta previa is present; when the mother has visible
genital herpes lesions or reports symptoms of prodromal lesions; when the mother is HIV
sero-positive; when mother is a confirmed carrier of hemophilia and the fetus is affected or of
unknown status; or when it is not possible to identify fetal presenting part where application is being
considered. This method is not recommended when fetus is extremely premature, or in the presence
of a maternal infection such as Hepatitis B, Group B hemolytic strep, syphilis or gonorrhea, unless a
clear benefit to the fetus or mother can be established.
7.3.1 Preparing the Patient's Skin Prior to Placing Electrodes
The skin is a poor conductor of electricity; therefore preparation of the patient's skin is important to
facilitate good electrode contact to skin.
Shave hair from electrode sites, if necessary.
Wash the sites thoroughly with soap and water. (Do not use ether or pure alcohol, which will
increase skin impedance)
Rub the skin briskly to increase capillary blood flow in the tissues.
Remove skin scurf and grease.
7.3.2 Directions for Using Fetal Spiral Electrode
1 With the patient in the dorsal lithotomy position, perform a vaginal examination and clearly identify
the fetal presenting part.
2 Remove the spiral electrode from the package; leave the electrode wires locked in the handle
notch.
3 Gently bend the guide tube to the desired angle.
Traditional 510(k) of Fetal & Maternal Monitor
014_14.1_F15_Series_User_Manual
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