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Uterine Size: 10 Weeks grapefruit size. 20 weeks is at umbilicus. 20 – 33 weeks matched dates +- 2 cm of Fundal Height. may not match at term due to descent. Ultrasound: is most accurate at 8 – 12 weeks. Dating Criteria for delivery: determines whether lungs are considered mature for delivery. FHT documented 30 weeks by Doppler. 36 weeks ... ................
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