Final answer:
Active labor, evidence of fetal distress, and a cervical dilation greater than 4 cm are absolute indications for delivery in the event of preterm labor. PPROM may necessitate delivery if there is evidence of chorioamnionitis or if gestational age is appropriate.
Step-by-step explanation:
The absolute indications for delivery, even in cases of preterm labor, include active labor, evidence of fetal distress, and the presence of cervical dilation > 4 cm. These conditions show that labor is progressing and the baby needs to be delivered promptly to reduce risks to both the infant and the mother. Particularly, fetal distress is a critical situation where the fetus is not well and requires immediate delivery. Other absolute indications, although not listed in the options provided, could include severe maternal conditions like preeclampsia, eclampsia, or hemorrhage where the continuation of the pregnancy would put the mother's life at risk.
When it comes to preterm premature rupture of membranes (PPROM), the risk of infection increases, necessitating delivery if gestational age is appropriate or if there's evidence of chorioamnionitis, an infection of the fetal membranes. However, PPROM alone without signs of infection or labor may not always be a definite indication for immediate delivery, especially if it occurs very early in gestation where prolonging the pregnancy might benefit fetal outcomes. In such cases, the risks and benefits of early delivery versus expectant management would be weighed by the healthcare team.