EDAN F6 User manual - 7.3 Monitoring Fhr With Decg
F Series Fetal & Maternal Monitor User Manual Fetal Monitoring
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7.3 Monitoring FHR with DECG
7.3.1 Contraindications
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.
7.3.2 Parts Required
1) DECG cable 2) Fetal spiral electrode 3) Disposable attachment pad electrode
The following illustration shows how these parts should be connected:
Figure 7-3 Connection for DECG Monitoring
7.3.3 Preparing 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.
1) Shave hair from electrode sites, if necessary.
2) Wash the sites thoroughly with soap and water. (Do not use ether or pure alcohol, which will
increase skin impedance)
3) Rub the skin briskly to increase capillary blood flow in the tissues.
(3)
(2) (1)