A multigravida client at 31 weeks gestation is admitted with confirmed pre-term labor.
As the nurse continues to monitor the client now receiving magnesium sulfate, which assessment findings will the nurse prioritize and report immediately to the RN or health care provider?

Rationale for Correct Condition

Preterm labor is defined as the onset of regular contractions leading to cervical change before 37 weeks of gestation. This client’s symptoms, including uterine contractions every 4–5 minutes, cervical effacement of 50%, a positive fetal fibronectin test, and shortened cervical length, strongly indicate preterm labor rather than pyelonephritis, placental abruption, or cervical insufficiency.

Rationale for Correct Actions

Magnesium sulfate functions as a tocolytic, suppressing contractions by inhibiting calcium influx in myometrial cells, thereby delaying preterm birth and reducing neonatal complications. Betamethasone accelerates fetal lung maturity by increasing surfactant production, reducing the risk of neonatal respiratory distress syndrome if preterm delivery occurs.

Rationale for Correct Parameters

Cervical effacement is a direct indicator of labor progression, showing changes in cervical thinning that accompany dilation. Monitoring effacement allows assessment of tocolytic effectiveness. Contraction frequency reveals labor severity and the response to magnesium sulfate. Persistent contractions despite treatment indicate the need for additional interventions.

Rationale for Incorrect Conditions

Pyelonephritis causes systemic symptoms like fever, flank pain, and bacteremia rather than uterine contractions and cervical changes. Placental abruption typically presents with painful vaginal bleeding and uterine tenderness, which are absent here. Cervical insufficiency is painless and lacks regular contractions, with cervical changes occurring silently rather than progressively.

Rationale for Incorrect Actions

Urine culture identifies infection but does not directly treat preterm labor. RhoGAM is necessary for Rh-negative individuals, which is irrelevant in this case. IV hydration may help with contractions but is not a primary intervention.

Rationale for Incorrect Parameters

Flank pain suggests pyelonephritis rather than preterm labor. Vaginal bleeding is associated with abruption or miscarriage, not preterm labor without cervical rupture. Fetal heart rate variability is useful in fetal assessment but does not directly indicate labor progression.

Choice A rationale

Expressing milk when bottle-feeding can stimulate further milk production, which would exacerbate the engorgement and discomfort. The goal is to discourage milk production.

Choice B rationale

While a supportive bra is generally recommended for comfort, a loose-fitting bra might not provide adequate support to reduce swelling and discomfort associated with engorgement. A firm, supportive bra is usually advised.

Choice C rationale

Cold packs cause vasoconstriction, which helps to reduce blood flow to the breasts, thereby decreasing swelling, inflammation, and pain associated with engorgement. This provides symptomatic relief without stimulating milk production.

Choice D rationale

Warm water can stimulate milk flow, which is counterproductive when trying to suppress lactation in a bottle-feeding mother experiencing engorgement. Warmth increases blood flow and can worsen swelling and discomfort.