A nurse explains cervical changes during labor. Which client statement indicates a correct understanding?
"Dilation means my cervix is thinning."
"Effacement is measured in centimeters."
"Dilation is how open the cervix is, and effacement is how thin it becomes."
"Effacement means my cervix is opening."
The Correct Answer is C
A. This is incorrect because dilation and effacement are two distinct processes. Dilation refers specifically to how open the cervix is, measured in centimeters from 0 cm (closed) to 10 cm (fully dilated). Thinning of the cervix is a separate process called effacement, which prepares the cervix for the passage of the fetus. Confusing these terms can lead to misunderstanding labor progression.
B. This is incorrect. Effacement is expressed as a percentage from 0% to 100%, indicating the degree of cervical thinning and shortening. A cervix that is 0% effaced is thick and long, while a cervix that is 100% effaced is paper-thin and fully prepared for delivery. Measuring effacement in centimeters is inaccurate and does not reflect clinical practice.
C. This is correct. Dilation measures the opening of the cervical canal, while effacement measures the thinning and shortening of the cervix. During labor, both processes occur simultaneously but independently. This statement demonstrates that the client understands the distinct roles of dilation and effacement in labor progression, which is essential for interpreting cervical assessments and anticipating delivery.
D. This is incorrect. Cervical opening refers to dilation, not effacement. Effacement refers exclusively to the thinning of the cervical tissue, which helps the cervix stretch more effectively during contractions and allows for easier passage of the fetus through the birth canal.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Fetal position refers to the relationship of a specific reference point on the fetus (usually the occiput, sacrum, or mentum) to the maternal pelvis, such as left occiput anterior (LOA). It describes how the fetus is oriented in relation to the maternal pelvis, not the relationship of fetal body parts to each other.
B. Fetal lie refers to the longitudinal axis of the fetus in relation to the maternal spine. It can be longitudinal, transverse, or oblique. While important in assessing labor, it does not describe the fetal body parts in relation to each other.
C. Fetal presentation refers to the part of the fetus that enters the maternal pelvis first, such as cephalic (head), breech (buttocks), or shoulder. Presentation does not describe the alignment of fetal body parts relative to each other.
D. Fetal attitude describes the relationship of the fetal body parts to one another, specifically the degree of flexion or extension of the fetal head, arms, and legs. The most common and favorable attitude for labor is general flexion, where the head is flexed, arms and legs are flexed, and the back is curved. This attitude allows the smallest diameter of the fetal head to pass through the birth canal, facilitating vaginal delivery.
Correct Answer is B
Explanation
A. A localized area of breast tenderness is more commonly associated with mastitis or breast engorgement. While these are postpartum complications, they are not indicative of uterine infection or endometritis and do not typically require evaluation for uterine infection.
B. Moderate, dark red, foul-smelling lochia is a hallmark sign of endometritis, an infection of the uterine lining (usually occurring within the first 2–10 days postpartum). This symptom indicates the presence of bacterial infection, often accompanied by fever, uterine tenderness, and malaise. Foul-smelling lochia occurs due to bacterial proliferation and breakdown of blood and tissue in the uterus, making further evaluation and prompt treatment necessary to prevent sepsis.
C. Hematuria (blood in the urine) suggests a urinary tract issue such as infection, trauma, or catheter-related irritation. It does not indicate endometritis, as the infection is localized to the uterine lining, not the urinary tract.
D. Cramping with breastfeeding, also known as afterpains, is a normal postpartum occurrence due to oxytocin-induced uterine contractions. While it can cause discomfort, it is expected and does not signal infection.
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