17
FHR Troubleshooting;
when signal quality is poor or bad
POSSIBLE CAUSE/PROBLEM
ACTION & SOLUTION
SKIN PREPARATION GOOD
WAIT/REPEAT SKIN PREP
REPEAT SKIN PREP
(ONLY ONCE)
2.4"/6cm
1"/2-3cm
1"/2-3cm
FHR
MHR
UA
2
Patient position/posture -
may cause muscle tension/
noise and/or displaced Patch
• Adjust patient’s position: head of bed up/down, right/left tilt.
• Use a pillow behind back or head to make patient more
comfortable, encouraging patient to relax abdominal muscles.
• Return patient to a position where Novii worked well.
• If patient is high Fowler’s or in a curled sitting position for
epidural placement, consider placing a rolled towel or
baby blanket under the abdomen for support to ensure
optimal position of the lowest electrode.
• If patient is on side, support abdomen with a pillow/rolled blanket to support the
abdomen so that the Patch remains centered over the uterus.
SKIN PREPARATION GOOD
WAIT/REPEAT SKIN PREP
REPEAT SKIN PREP
(ONLY ONCE)
2.4"/6cm
1"/2-3cm
1"/2-3cm
FHR
MHR
UA
Electrode ‘detached’ or
has bad contact with skin -
electrode not able to
function properly
3
• Check all electrodes and ensure good skin contact/adhesion.
• Consider re-position Patch or electrode to avoid any skin anomalies. Restart the
Novii system for monitoring.
HELP/TIP
a) The Interface will alert user with a visual message, but only when electrode is fully detached.
b) Check electrodes for adhesion after a shower, clinical procedure, ambulation or a position change.
c) Electrode(s) should not be placed over a skin lesion, skin fold, or umbilicus. Avoid stretch marks,
scars or pronounced linea nigra when possible.
d) If necessary use medical tape or transparent adhesive dressing for added adhesion to prevent
electrode lifting or detachment.
e) If electrode site is hairy, preventing good contact/adhesion, it may be necessary to clip the hair.
SKIN PREPARATION GOOD
WAIT/REPEAT SKIN PREP
REPEAT SKIN PREP
(ONLY ONCE)
2.4"/6cm
1"/2-3cm
1"/2-3cm
FHR
MHR
UA
1
The patient is ambulating -
may cause increased muscle
noise and/or displaced Patch
• Return patient to bed and/or reduce patient’s activity.
• Consider using a maternity belt to support pannus during ambulation or upright position.
HELP/TIP
a) Allow 10-15 minutes of monitoring before starting ambulation.
b) The patient should not be encouraged to ambulate unless the FHR trace
is consistent and the signal indicator on the Novii Interface shows
3 green squares.
Signal
*A small number of patients will not be able to be monitored successfully with the Novii despite troubleshooting.
**During a FHR gap there is silence, and it is therefore advised to explain this to the patient and partners so they are aware and not distressed when there is no audio noise.
• While the Novii detects the FHR continuously on many patients, some patients will require troubleshooting to reacquire the
FHR signal.*
• Inadequate Patch/electrode placement or increased noise (electrical interference) may cause frequent or persistent FHR
gapping** and/or FHR artifact. Sources of noise may include electrophysiological noise from the patient or fetus and electrical
noise from the environment.
Summary of Contents for Novii
Page 1: ...1 Novii Wireless Patch System Clinical Application Guide gehealthcare com ...
Page 2: ...2 ...
Page 24: ...24 ...
