Family Nurse Practitioner Exam

What is the main characteristic of Chadwick's sign during pregnancy?

1. Softening of the uterine isthmus

2. Softening of cervical tissue

3. Increased vascularity in the pelvic area

4. Blue coloration of cervix and vagina

The correct answer is: Blue coloration of cervix and vagina

Chadwick's sign is a notable change that occurs during pregnancy, characterized by the blue or purplish coloration of the cervix and vagina. This phenomenon arises due to increased blood flow and vascularity to the pelvic region as a result of hormonal changes, particularly elevated levels of estrogen and progesterone. The increased blood supply enhances the sensitivity of these tissues, leading to their notable coloration. This sign typically becomes evident around six to eight weeks of gestation and is often used as an early indication of pregnancy during a physical examination. Recognizing Chadwick's sign is essential for healthcare providers when assessing a patient for early pregnancy signs. Other options, while related to changes in the reproductive system during pregnancy, do not specifically define Chadwick's sign. The softening of the uterine isthmus and cervical tissue are signs of other physiological changes that occur in pregnancy, and although increased vascularity in the pelvic area contributes to the changes observed, it is the distinct blue coloration that specifically denotes Chadwick's sign.