Which characteristic is a sign that tocolysis is indicated for preterm labor management?

The characteristic that indicates tocolysis for preterm labor management is the presence of uterine contractions. Tocolysis is the use of medication to suppress uterine contractions and delay preterm labor. The presence of regular or frequent uterine contractions is a critical factor because it suggests that preterm labor is imminent.

In the management of preterm labor, identifying whether the uterus is actively contracting is essential in determining the appropriateness of tocolytic therapy. If contractions are noted and the cervix is showing signs of change, particularly in terms of dilation or effacement, tocolysis may be warranted to attempt to prolong the pregnancy, especially if the gestational age is less than 34 weeks—a time period where fetal maturity is still developing.

While cervical dilation greater than 4 cm is a complication that might suggest a more advanced stage of labor where tocolysis is typically not indicated, and gestational age under 34 weeks is a criterion for monitoring, it is the presence of uterine contractions that directly triggers the clinical response for intervention. Multiparity can complicate labor but is not a direct indication for tocolysis when assessing individual cases. Thus, uterine contractions serve as a primary component of the assessment that leads to the decision for