The nurse is aware that labor and birth will most likely proceed normally when the fetal position is:

Choice A rationale
Valsalva maneuver involves forced expiration against a closed airway, increasing intrathoracic pressure and commonly used to expel the fetus during the second stage of labor.
Choice B rationale
Ferguson’s reflex involves the release of oxytocin due to vaginal and cervical stretching, leading to stronger contractions during the second stage of labor.
Choice C rationale
Lightening refers to the descent of the fetus into the pelvis before labor begins, reducing pressure on the diaphragm and making breathing easier.
Choice D rationale
Molding is the slight overlapping of cranial bones, allowing the fetal head to change shape and fit through the birth canal during labor.

Choice A rationale
Bladder distention may cause discomfort and urinary issues but is not directly related to cervical dilation and effacement, which involve changes in the cervix to prepare for labor.
Choice B rationale
False labor involves irregular contractions that do not lead to cervical dilation and effacement. These are often called Braxton Hicks contractions and do not result in significant cervical changes.
Choice C rationale
The cervical mucus plug coming out, also known as the "bloody show," indicates that the cervix is beginning to dilate and efface, which are preparatory processes for labor to occur.
Choice D rationale
Lightening refers to the descent of the baby into the pelvis, which typically occurs in the later stages of pregnancy and does not directly involve cervical dilation and effacement processes.