During premature rupture of membranes at 30 weeks with cervix 2 cm dilated and 50% effaced, which assessment should the nurse perform next?

• A. Fetal heart rate
• B. Blood pressure
• C. Temperature
• D. Respiratory rate

Answer: (C)

In premature rupture of membranes, the risk of infection rises because bacteria can more easily ascend into the uterus once the protective membranes are breached. The most immediate clue that intra-amniotic infection (chorioamnionitis) may be developing is maternal fever. Checking temperature first helps detect infection early, which is crucial because it guides timely interventions such as antibiotics and decisions about delaying or expediting delivery to protect both mother and fetus. While monitoring fetal heart rate and other vitals are important for overall status, fever specifically signals a potential infection related to PROM and warrants prompt assessment.