Terms in this set (27)
RN or higher no LVN or CNA
Two types of monitoring-external and internal-can be done.
Electronic fetal heart monitoring is done during pregnancy, labor, and delivery to keep track of the heart rate of your baby (fetus) and the strength and duration of the contractions of your uterus. Your baby's heart rate is a good way to tell whether your baby is doing well or may have some problems.
External monitoring can be done by listening to your baby's heartbeat with a special stethoscope. More often, external monitoring is done using two flat devices (sensors) held in place with elastic belts on your belly.
One sensor uses reflected sound waves (ultrasound) to keep track of your baby's heart rate. The other sensor measures the duration of your contractions.
EFM with absence of risk factors
every 30 minutes in active phase 1.
every 15 minutes active pushing stage 2.
EFM with risk factors
every 15 minutes in active phase 1.
every 5minutes active pushing stage 2.
place Taco usually on fundus.
baseline resting tone.
The duration of the uterine contraction is the time from the beginning of one contraction to the end of that same contraction.
frequency is time between contraction.
So if you have a contraction at 8 pm and it lasts for 60 seconds, and then you have another contraction at 8:15 pm , the contractions have a duration of 60 seconds and a frequency of 15 minutes. The intensity of the contractions also changes as labor progresses.
less than or equal to 5
tachysystole aka fast contractions
more than 5 in less than 10 minutes.
is deviating form baseline; 15 beat high and 15 seconds wide is normal.
Acceleration is increase in fetal heart beat.
Why acceleration happen
increase in heart rate lasts for 2 to 10 minutes and high peak.
Baseline variability is defined as fluctuations in the fetal heart rate of more than 2 cycles per minute.
the zig zag lines.
Absent variability = Amplitude range undetectable.
Minimal = < 5 BPM.
Moderate = 6 to 25 BPM--this is good.
Marked = > 25 BPM.
abrupt decrease in FHR
mom is having a contraction and baby's heart is responding to that contraction
deceleration is defined as an abrupt decrease in fetal heart rate below the baseline which may or may not be associated with uterine contractions.
mirror image. contraction increase at same time fetal heart rate decrease.
Fetal heart rate decreases because contraction compress fetal toward pelvic/ cervix.
when moms contacting nothing happens to fetal heart rate until contraction is over.
Placenta is unable to deliver an adequate o2 and nutrition; thus, unable to support the fetal demand during contractions.
No Pattern, amy be prolapse.
decrease o2 to fetal.
Intervention requirer for late and variable
Variable ------------Cord compression.
Early decel---------Head compression.
Late Decel---------Uteroplacental insufficiency.
Category I (Normal)
Category II (Indeterminate)
findings that are not classified as normal or abnormal)****
Brady with moderate variability.
Regular FHR with minimal variability.
Absent variability without recurrent decels or marked baseline variability.
Absence of induced accelerations after FAS.
Periodic or non-periodic decelerations - recurrent variables with minimal or absent variability, prolonged decels, recurrent late decels with moderate baseline variability.
******Auscultation cannot determine category II or III because it cannot identify variability.
Category III (Abnormal)
Absent baseline FHR variability and any of the following: