Before administering terbutaline for preterm labor, which condition should the nurse assess?

When considering the administration of terbutaline for preterm labor, it is essential for the nurse to assess for gestational diabetes. Terbutaline is a β2-adrenergic agonist that can have various metabolic effects. One of the potential side effects of terbutaline is an increase in blood sugar levels, which is particularly concerning for individuals with gestational diabetes. Proper assessment ensures that any existing hyperglycemia is monitored and managed effectively, as uncontrolled blood sugar levels can have adverse effects on both the mother and the fetus.

In this context, the other conditions mentioned are important to monitor but do not have the same direct relationship with terbutaline as gestational diabetes does. Elevated blood pressure, for instance, is significant in the management of preterm labor and could suggest conditions like preeclampsia, which might require alternative interventions. Similarly, while urinary tract infections and swelling in the lower extremities may indicate other medical issues, they do not specifically relate to the potential metabolic impacts of terbutaline. Therefore, assessing for gestational diabetes is a priority before administering this medication.