How do I read my FHR monitor?
When you’re looking at the screen, the fetal heart rate is usually on the top and the contractions at the bottom. When the machine prints out graph paper, you’ll see the fetal heart rate to the left and the contractions to the right. Sometimes it’s easier to read printouts by looking at them sideways.
How do you calculate FHR?
Instantaneous fetal heart rate (FHRi) values (expressed in beats per minute – bpm) are calculated for each cardiac cycle according to formula: FHRi [bpm] = 60000/Ti [ms]. The most often used noninvasive acquisition method is the Doppler ultrasound (US) technique [1,2].
How is FHR baseline measured?
The baseline FHR is the heart rate during a 10 minute segment rounded to the nearest 5 beat per minute increment excluding periods of marked FHR variability, periodic or episodic changes, and segments of baseline that differ by more than 25 beats per minute. The minimum baseline duration must be at least 2 minutes.
When should I assess my FHR?
The fetal heart rate must be assessed before, during, and after a contraction. The fetal heart rate assessed before, during and after a contraction is called the fetal heart rate pattern. This provides important information on the fetal condition.
How many minutes should the examiner assess for fetal heart rate?
He or she will press the device against your abdomen to listen to the baby’s heartbeat. They will do this at set times during labor, such as every 30 minutes. If you are at risk of having problems or if problems develop during labor, you will be checked more often.
What is a reassuring FHR pattern?
Reassuring pattern. Baseline fetal heart rate is 130 to 140 beats per minute (bpm), preserved beat-to-beat and long-term variability. Accelerations last for 15 or more seconds above baseline and peak at 15 or more bpm. (
What is a contraction on a Toco?
Women in labor are traditionally monitored with the tocodynamometer (TOCO), which is based on the pressure force produced by the contorting abdomen during uterine contractions. The contractions are measured by a pressure transducer placed on the patient’s abdomen.