Obstetrics & Gynaecology – MCQ 74 – Cervical length and preterm delivery

Risk of preterm delivery is increased if cervical length is:
A. 2.5 cm
B. 3.0 cm
C. 3.5 cm
D. 4.0 cm

Correct answer : A. 2.5 cm

Cervical length of less than 2.5cm (as per transvaginal USG) is an important predictor of preterm labour.