Guidelines for evaluating fetal heart rate tracings exist there is still a gray area present in the Class II fetal heart tracings and how to manage the fetal heart tracings in the context of the patient. Category I Normal tracing including all of the following.
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The FHR patterns in Category II are heterogeneous in that they reflect varying risks for fetal acidemia 4.

Category fetal heart tracing. It is clearly abnormal and is associated with increased risk of fetal acidemia neonatal encephalopathy and cerebral palsy. Category II tracings may represent an appreciable fraction of those encountered in clinical care. Present or absent Category Il.
Baseline FHR 110-160 BPM moderate FHR variability accelerations may be present or absent no late or variable decelerations may have early decelerations. Category 2 fetal heart rate tracings NICHD latent phase active phase second stage Appendix P. Auscultation of the fetal heart rate FHR is performed by external or internal means.
There exists broad consensus on the recognition and management of categories I and III. If preceding tracing not associated with significant acidemia then ABCD Absen ariabilit decels 20 min or w badycadia baseline rate 110 BPM or sinusiodal pattern Appendix Q algorithm for the Management of Intrapartum fetal heart rate tracings Category I Category 2 Category 3 Mdeate variabilit ate or aiae dee aadia May bserve ABCD Mared. Three-Tier Fetal Heart Rate Interpretation System 41 Category I.
An FHR tracing may move back and forth between the categories depending on the clinical situation and management strategies used. We sought to describe demographics and neonatal outcomes associated with CIII. Category II FHR tracings include all tracings not categorized as Category I or Category III.
Management of the category II fetal heart rate FHR tracing presents a common challenge in obstetrics. The transducer uses Doppler ultrasound to detect fetal heart. Any clinical setting that uses the NICHD 3-tier system has to grapple with how to manage Category II tracings Jackson M 2011 Linda Troutfetter RN Petaluma Valley Hospital.
Present or absent Accelerations. In respect to this what is a Category 3 fetal heart rate tracing. Algorithm for the Management of Category II Fetal Heart Tracings California Maternal Quality Care Collaborative.
Moderate Late or variable decelerations. Tracing patterns can and will change. What is a fetal strip.
Category I FHR tracings are strongly predictive of normal fetal acidbase. Predictive of abnormal fetal acid-base status Category II. At some point during labor category I patterns were observed in over 99 percent of tracings category II patterns were observed in 84 percent of tracings and category III patterns were observed in 01 percent of tracings.
Most common fetal heart rate tracing characteristic associated with Category II 85 of the patients with adverse outcome had more than one FHR tracing characteristic associated with Category II Decelerations with minimal variability were the characteristics most often associated with a pH 710. For laboring women who exhibit a Cat-I FHR tracing FHR monitoring during labor may either be continuous or intermittent. 110-160 beats per minute Baseline FHR variability.
Examples of Category II FHR tracings include any of the following. Late or variable decelerations. NICHD Category III CIII fetal heart rate tracing FHR is defined as having either sinusoidal pattern or absent baseline variability plus recurrent late decelerations recurrent variable decelerations or bradycardia.
Three-Tiered Fetal Heart Rate Interpretation System Category I Category I tracings include all of the following. Here we propose a management algorithm to identify specific features of the FHR tracing that correlate with risk. For those who are aware of the recommendations this gray area of management still leads to variability in how delivery may ensue.
Fetal heart rate FHR tracings are classified into 3 categories per the National Institute of Child Health and Human Development guidelines. Tracing evaluates the fetus at that point in time. Category IIIhighly troubling and damaging Conversely the Cat-III tracing is an OBs nightmare.
The fetal heart rate tracing shows ALL of the following. Strongly predictive of normal fetal acid-base status Category III. Up to 80 of women will have a category II FHR tracing at some point during labor.
Category I FHR tracings are normal. Indeterminatethey require evaluation and continued surveillance and reevaluation taking into account the entire associated clinical circumstances. NICHD Category III CIII fetal heart rate tracing FHR is defined as having either sinusoidal pattern or absent baseline variability plus recurrent late decelerations recurrent variable.
NICHD Category III CIII fetal heart rate tracing FHR is defined as having either sinusoidal pattern or absent baseline variability plus recurrent late decelerations recurrent variable decelerations or bradycardia.
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