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Fetal Reserve Index components
| Components of the Fetal Reserve Index |
|---|
| FHR |
| Baseline variability |
| Accelerations |
| Decelerations |
| Increased uterine activity |
| Maternal risk factors |
| Obstetrical risk factors |
| Fetal risk factors |
| Each factor scored as 1 if normal and 0 if not |
| Maximum of 8/8 = 100% |
| Green zone: > 50% |
| Yellow zone: 50 to 26% |
| Red zone: ≤ 25% |
