Clinical OB/GYN Calculators & Decision Support
Obstetrics and Gynecology requires a combination of gestational timeline calculations, labor induction prediction scores, and maternal risk assessments. Validated by organizations like the American College of Obstetricians and Gynecologists (ACOG), these calculators support clinicians, midwives, and residents in delivering safe, standardized maternal care.
Primary OB/GYN Tools
Our OB/GYN portal provides quick access to high-yield clinical equations:
- Gestational Dating: Estimates Due Date (EDD) using Naegele's Rule from the Last Menstrual Period (LMP) and calculates Gestational Age (GA).
- Bishop Score: Evaluates cervical ripeness (dilation, effacement, station, consistency, position) to predict the likelihood of successful labor induction.
- Preeclampsia Prophylaxis: Assesses clinical criteria to determine low-dose aspirin eligibility in high-risk pregnancies.
- Labor & Delivery Infusions: Calculates precise oxytocin titration rates to manage contractions safely.
- Fetal Growth & Weight: Estimates fetal weight using Hadlock equations from ultrasound parameters.
BEDSIDE FAQs
A Bishop Score **≥ 8** indicates a highly "ripe" cervix, meaning the likelihood of a successful vaginal delivery after induction is equivalent to that of spontaneous labor. A score **≤ 6** suggests an unfavorable cervix, indicating that cervical ripening agents (such as prostaglandins or mechanical balloons) should be used prior to starting oxytocin.
USPSTF guidelines recommend initiating low-dose aspirin (81 mg/day) after 12 weeks of gestation if a patient has **one high-risk factor** (e.g., history of preeclampsia, multifetal gestation, chronic hypertension, pre-existing type 1 or 2 diabetes, renal disease, or autoimmune disease) or **two or more moderate-risk factors** (e.g., nulliparity, obesity, family history of preeclampsia, low socioeconomic status, or age ≥ 35).