Final answer:
The most appropriate nursing diagnosis for a primigravida in the early phase of labor is likely 'Potential fluid volume deficit related to decreased fluid intake' due to the importance of maintaining hydration for both the mother and baby during the labor process.
Step-by-step explanation:
Appropriate Nursing Diagnosis for Primigravida : The most appropriate nursing diagnosis for a primigravida as she completes the early phase of labor would likely be Potential fluid volume deficit related to decreased fluid intake. During the early phase of labor, a woman may not feel like drinking adequate fluids due to the discomfort and anxiety associated with the process. Ensuring proper hydration is important because fluids are needed to maintain blood pressure, perfusion, and amniotic fluid levels, which are critical for both the mother's and baby's well-being during labor. Explanation of Other Diagnoses: Impaired gas exchange related to hyperventilation might affect a laboring woman if she is breathing too quickly due to pain or anxiety, leading to a decrease in CO2 levels (respiratory alkalosis) which could disrupt the acid-base balance. This condition is more likely to occur in the active phase when pain and stress are higher. Alteration in placental perfusion related to maternal position occurs when the mother's position compromises blood flow to the placenta and thus to the fetus. Certain positions can compress the vena cava, decreasing preload, cardiac output, and can interfere with fetal oxygenation. Impaired physical mobility related to fetal-monitoring equipment is a consideration for women who are required to be continuously monitored and may not be able to move around freely, which can affect labor progress and comfort.