A nurse is assisting in the care of a client who is in active labor.
The nurse notes variable decelerations of the FHR. The nurse should identify which of the following as a cause of variable decelerations?

Choice A rationale

Increased dietary fiber (cellulose) adds bulk to the stool, promoting peristalsis and facilitating bowel movements. Adequate fluid intake is crucial for softening stool and preventing dehydration, which can exacerbate constipation. Together, these interventions physically aid in the formation and passage of softer, more regular stools, addressing the root cause of pregnancy-related constipation.

Choice B rationale

Regular use of a laxative, especially stimulant laxatives, is generally discouraged during pregnancy due to potential for dependency, electrolyte imbalances, and uterine contractions. While some bulk-forming laxatives might be considered, the primary recommendation focuses on dietary and lifestyle modifications as a safer and more physiological approach to managing constipation.

Choice C rationale

Maintenance of good posture can influence comfort and spinal alignment, but it does not directly address the physiological mechanisms contributing to constipation, such as slowed gastrointestinal motility or insufficient dietary fiber and fluid. While beneficial for overall well-being, it is not a primary intervention for alleviating constipation.

Choice D rationale

Regular use of glycerin suppositories acts as a local irritant and osmotic agent to soften and stimulate the rectum for defecation. While they can provide temporary relief, they do not address the underlying causes of constipation in pregnancy and their regular use can lead to dependency, hindering the body's natural bowel function.

Choice A rationale

Acupressure involves applying pressure to specific points on the body, aiming to stimulate energy flow and relieve pain. While it can promote relaxation and analgesia by releasing endorphins, its direct effect on significantly reducing blood pressure and respiratory rate in acute anxiety may be less pronounced compared to methods emphasizing controlled breathing techniques.

Choice B rationale

Effleurage is a light, stroking massage, typically applied to the abdomen during contractions. This technique can distract from pain and promote relaxation by stimulating large nerve fibers, thereby reducing pain perception. However, its primary physiological impact is generally on pain modulation and comfort, rather than a direct, strong reduction in elevated blood pressure and respiratory rate.

Choice C rationale

The Bradley method, also known as "husband-coached childbirth," emphasizes natural childbirth, focusing on deep abdominal breathing, relaxation, and partner support. While it promotes a calm environment and can reduce overall stress, its specific techniques for immediate physiological regulation of acutely elevated blood pressure and erratic respirations may not be as direct as methods specifically teaching controlled breathing.

Choice D rationale

The Lamaze method focuses on controlled breathing and relaxation techniques during labor. These techniques, particularly patterned breathing, directly influence the autonomic nervous system by increasing vagal tone, which can lead to a decrease in heart rate and respiratory rate, thereby lowering blood pressure and promoting a sense of calm during periods of anxiety.

Choice E rationale

Yoga incorporates physical postures, breathing exercises (pranayama), and meditation. While highly effective for long-term stress reduction and improving cardiovascular health, its immediate application in a laboring client experiencing acute anxiety with elevated vital signs might be less practical for immediate physiological regulation compared to targeted breathing methods like Lamaze.