A woman at 32 weeks gestation tells the nurse, I feel like I am going to tip over backwards lately, and my lower back is killing me. Which physiologic adaptation of pregnancy should the nurse explain is causing these symptoms?

Kyphosis causing forward curvature of the spine.

Lordosis causing increased lower back curvature to compensate for the growing uterus.

Generalized back pain from weight gain.

Leg pain from poor circulation.

Answer and Explanation

The Correct Answer is B

Choice A rationale

Kyphosis is an abnormally increased convex curvature of the thoracic spine, often leading to a hunchback appearance. While it can occur due to osteoporosis or poor posture, it is not the typical spinal adaptation seen in pregnancy. Pregnancy primarily affects the lower back rather than the upper back. The patient's complaint of feeling like she is tipping backward and experiencing lower back pain points toward changes in the lumbar region rather than the thoracic spine curvature.

Choice B rationale

Lordosis is an increased inward curvature of the lumbar spine that develops as the mother's center of gravity shifts forward due to the enlarging uterus. To maintain balance and prevent falling forward, the woman leans backward, which stresses the lower back muscles and ligaments. This common physiologic adaptation accounts for the feeling of tipping over and the significant lower back pain reported at 32 weeks. Strengthening exercises and proper body mechanics are often recommended to manage this.

Choice C rationale

While weight gain does contribute to musculoskeletal strain during pregnancy, it is a generalized factor rather than the specific physiologic spinal adaptation responsible for the change in posture. The feeling of tipping over is directly related to the shift in the center of gravity and the compensatory curvature of the spine. Simply stating that the pain comes from weight gain lacks the scientific depth regarding the biomechanical changes in the vertebral column that define lordosis.

Choice D rationale

Leg pain in pregnancy can result from various factors, including pressure on the pelvic nerves, venous stasis, or mineral deficiencies like low magnesium or calcium. However, the patient's specific complaint is focused on the sensation of tipping over and acute lower back pain. These symptoms are classic indicators of spinal realignment rather than circulatory issues in the lower extremities. Poor circulation usually manifests as edema, varicose veins, or cramping rather than a postural imbalance.

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Correct Answer is B

Explanation

Choice A rationale

In the context of labor and delivery, power refers specifically to the forces acting to expel the fetus from the uterus. This includes primary powers, which are involuntary uterine contractions that result in effacement and dilation of the cervix, and secondary powers, which involve the voluntary bearing-down efforts made by the mother. While power is essential for the progression of labor, it does not describe the anatomical positioning or orientation of the fetus itself.

Choice B rationale

The passenger refers to the fetus and the placenta. Fetal position, such as left occiput anterior, describes the relationship of a specific fetal landmark to the four quadrants of the mother's pelvis. This is a crucial component of the passenger variable because the way the fetus moves through the birth canal depends on its size, presentation, lie, and attitude. Assessing the passenger allows the healthcare team to predict the ease or difficulty of the descent during labor.

Choice C rationale

Passage refers to the maternal birth canal, which consists of the bony pelvis and the soft tissues of the cervix, pelvic floor, and vagina. While the dimensions and shape of the passage are vital for a successful delivery, this term does not describe the fetus. The nurse must distinguish between the container and the content. Understanding the passage involves clinical pelvimetry, but the fetal position remains a characteristic of the passenger navigating through that specific passage.

Choice D rationale

Psyche refers to the psychological and emotional state of the laboring woman. Factors such as anxiety, previous experiences, cultural expectations, and social support can influence how a woman perceives and manages the pain and stress of labor. Although the mother's psyche can impact the overall progress of labor by affecting hormonal balance and muscle tension, it is entirely distinct from the physical assessment of fetal position or the mechanical factors involving the fetus.

A. Frequency (how often contractions occur). B. Duration (how long each contraction lasts from beginning to end). C. Intensity (the strength of the contraction at its peak). D. Appearance (the shape and height on the monitor tracing).

Correct Answer is ["A","B"]

Explanation

Choice A rationale

Frequency is measured from the beginning of one contraction to the beginning of the next contraction. It is a critical component of labor documentation because it helps the nurse assess the progress of labor and the adequacy of uterine rest periods. Normal labor typically involves contractions occurring every 2 to 5 minutes. Monitoring frequency ensures that the uterus is not being overstimulated, which could compromise uterine blood flow and lead to fetal distress.

Choice B rationale

Duration refers to the length of a single contraction from its onset to its completion, usually measured in seconds. In active labor, contractions typically last 40 to 90 seconds. Documenting duration is essential for evaluating the efficiency of the uterine muscle in thinning and dilating the cervix. Excessively long contractions, lasting over 90 seconds, can reduce placental perfusion and oxygen delivery to the fetus, necessitating close monitoring and potential intervention by the healthcare provider.

Choice C rationale

Intensity represents the strength of the uterine muscle during the peak of a contraction. While external fetal monitors can track the timing of contractions, they cannot accurately measure the actual pressure or intensity in millimeters of mercury. Intensity is best assessed by manual palpation of the fundus or by using an internal intrauterine pressure catheter. Therefore, a nurse using only an external monitor cannot reliably document quantitative intensity, as external readings are influenced by maternal adipose tissue.

Choice D rationale

The appearance or height of the contraction waveform on an external fetal monitor strip is subjective and depends heavily on the tightness of the monitor belt and the thickness of the maternal abdominal wall. It does not provide a scientifically standardized measure of labor progress or uterine strength. Relying on the visual height of the tracing to document contraction characteristics is inaccurate. Nurses must focus on measurable data like frequency and duration rather than the visual scale.

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A woman at 32 weeks gestation tells the nurse, I feel like I am going to tip over backwards lately, and my lower back is killing me. Which physiologic adaptation of pregnancy should the nurse explain is causing these symptoms?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse documents that a laboring woman's fetus is in the left occiput anterior (LOA) position. A nursing student asks which of the five Ps this assessment finding refers to. The nurse should explain that fetal position describes the:

Correct Answer is B

Explanation

A nurse is documenting a laboring woman's contractions using the external fetal monitor. Which contraction characteristics should the nurse include in the documentation? Select all that apply.

Correct Answer is ["A","B"]

Explanation

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