Kaplan Obstetrics (OB) Practice Test

The initial dosage of Oxytocin for labor, when diluted in isotonic solution, typically starts at 10 units in 100 mL. This dosage is standard to stimulate uterine contractions effectively while allowing for careful monitoring of the patient's response. Administering this concentration provides a manageable way to gradually adjust the infusion rate based on the patient's contraction pattern and fetal heart rate response.

Using this initial concentration ensures that there is a balance between providing enough stimulation for labor progression while minimizing the risk of overstimulation, which could lead to adverse effects such as uterine hyperstimulation or fetal distress. As adjustments in dosage or infusion rates are required, the healthcare provider can increase or decrease the dose according to clinical indications and the patient's response.