The Bureau of Labor Statistics (BLS) is an agency of the U.S. Department of Labor that has been in operation since 1884. According to its official website, the vision of the BLS is to meet the information needs of a rapidly changing U.S, and global economy by continuously improving its products and services, investing in its work force, and modernizing its business processes.
Note: Scar tissue may interfere with normal intrapartal cervical dilation and effacement. Vaginal bleeding other than slight spotting may be sign of cervical dilatation. Leaking membranes may herald impending delivery and place client at greater risk for infection.
Difficulty in dilating the internal cervical os is a common problem in performing curettage. It is considered complete when it extends to the external cervical os. Cervical length was determined by the simultaneous visualisation of the internal and external cervical os and their measurement across the endocervical channel. Cervical length and dilatation of the internal cervical os detected by vaginal ultrasonography as markers for preterm delivery: a systematic review.