Table 1.
Gestational age (weeks) | Measurement frequency (Hz) | Maximum return period (weeks) |
19–32 | 20 | 4 |
33–36 | 30 | 2 |
37–42 | 50 | 1 |
Gestational age (weeks) | Measurement frequency (Hz) | Maximum return period (weeks) |
19–32 | 20 | 4 |
33–36 | 30 | 2 |
37–42 | 50 | 1 |