What side effect can Cervidil cause?

Cervidil, which contains dinoprostone, is used to facilitate cervical ripening and induction of labor. One of the expected and primary side effects of Cervidil is cervical effacement, which is the thinning of the cervix in preparation for labor. This process often leads to contractions as the body begins to respond to the medication's effects.

This makes option A the correct answer, as it aligns with the physiological response anticipated when using Cervidil. As the cervix becomes more favorable for labor, the contractions may start and progress, facilitating the delivery process.

Other options, while they may relate to pregnancy or labor, are not standard side effects attributed to Cervidil. Uterine rupture is a rare but serious complication that could occur in certain high-risk situations but is not associated with the use of Cervidil itself. Nausea and vomiting can occur with various medications but are not common side effects specifically linked to Cervidil. Fluid retention is not typically a side effect expected with Cervidil. Thus, understanding the mechanism of action of Cervidil clarifies why effacement and contractions are anticipated under its influence, leading to the choice of option A as the correct response.