A 27yo lady has had an uncomplicated pregnancy so far

A 27yo lady has had an uncomplicated pregnancy so far. She came to the hospital 2h ago after
her water broke. The midwife is looking at her now. She has regular contractions. P.V exam
revealed 2cm dilated cervix. Vital signs are normal. What stage of labour is she in?
a. Second stage
b. First stage
c. Latent stage
d. Third stage
e. Active phase

Ans. The key is B. First stage. First stage starts with softening of cervix with start of opening of cervix and
ends when cevix is fully dilated (i.e. 10 cm dilated).