WUSM OB Calc

Functionality & Mechanism

This clinical decision support instrument, developed at Washington University, provides calculation modules for common obstetric and gynecologic scenarios. The system delivers instant clinical support through five distinct calculators that quantify specific parameters. Its capabilities include determining success rates for vaginal birth after cesarean (VBAC); assessing risk for Down syndrome from ultrasound markers; guiding management for pregnancy of unknown location; calculating body surface area for methotrexate dosing; and calculating intrauterine growth restriction. The underlying models utilize data drawn from published literature and expert opinion to generate these outputs for clinical or research applications.

Intended Use & Scope

This tool is designed for healthcare providers, including ultrasound technicians, triage nurses, and clinicians at all training levels in obstetrics, gynecology, and emergency medicine. It functions as a rapid-access reference to augment clinical decision-making in specific patient care scenarios. This tool is intended to support, not replace, clinical judgment. Users should verify information with primary sources.