It may be longitudinal, transverse, or oblique. Fetal lieįetal lie describes how the fetus is positioned in the womb. A tight birth canal may result in squeezing the fetus’s head into a slightly oblong shape, a common occurrence that usually disappears in the days after birth. Head molding refers to changes in shape of the fetus’s head as it experiences pressure during the journey through the birth canal. Fetal headįetal head describes both the size and molding, or shape, of the fetus’s head. Two other key elements of labor include fetal position and fetal station, which are discussed in more detail below. The following factors will affect labor: fetal head, fetal lie, fetal presentation, and fetal attitude. The passenger is the fetus (and the placenta). How strong are the contractions, and how are they affecting the cervix? If contractions are ineffective - if they don’t change the cervix in preparation for labor - it’s possible that the passageway is inadequate, and this will affect the patient's ability to give birth. Is their pelvis tilted? How is their cervix? These anatomical considerations may affect a patient’s ability to birth a baby vaginally or alter the labor in some other way. The passageway is another name for the birth canal (comprising the cervix, vagina, and pelvis), and concerns the patient’s anatomy. When considering the factors affecting labor, we use a shorthand: the 3Ps: the passageway, the powers, and the passenger.ģPs in a Pod: Passageway, Powers, Passenger! Passageway The Cool Chicken hints in these articles are just a taste of what's available across our Level Up RN Flashcards for nursing students! Factors affecting labor ![]() When you see this Cool Chicken, that indicates one of Cathy's silly mnemonics to help you remember. The Maternity Nursing series follows along with our Maternity Nursing Flashcards, which are intended to help RN and PN nursing students study for nursing school exams, including the ATI, HESI, and NCLEX. ![]() This article focuses on factors affecting labor, especially fetal position and fetal station.
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