What medication is indicated for a client experiencing labor dystocia?

Oxytocin is indicated for a client experiencing labor dystocia because it is a hormone that stimulates uterine contractions. In cases of labor dystocia, which is characterized by ineffective or prolonged labor, oxytocin can be administered to enhance the frequency and strength of contractions, helping the labor progress more effectively. This medication mimics the natural hormone that the body produces during labor, facilitating cervical dilation and aiding in the delivery process.

Other medications listed serve different purposes. Terbutaline is a bronchodilator often used as a tocolytic agent to stop preterm labor by relaxing the uterus, which would not be appropriate in the case of dystocia that requires the promotion of labor. Magnesium sulfate is also a tocolytic that can be used to prevent preterm labor, and it does not enhance labor progress. Betamethasone is a corticosteroid used to accelerate fetal lung maturity in cases of preterm labor but does not directly impact labor progression. Thus, oxytocin stands out as the appropriate choice for addressing labor dystocia.