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Obstetrics & Gynecology Clinical Calculators

Evidence-based obstetrics and gynecology calculators for cervical ripening assessment (Bishop Score), postpartum depression screening (EPDS), newborn health assessment (APGAR), preeclampsia risk evaluation, and estimated date of delivery.

Why This Matters

Maternal and newborn health remains a global priority, with approximately 287,000 maternal deaths and 2.4 million neonatal deaths annually worldwide. The WHO emphasizes the importance of standardized assessment tools in obstetrics and gynecology for improving outcomes. The Bishop Score, developed in 1964, remains the gold standard for assessing cervical ripening before labor induction. The Edinburgh Postnatal Depression Scale (EPDS) screens for postpartum depression, which affects 10-15% of new mothers and is often undiagnosed. The APGAR score, introduced in 1953, is the universal newborn assessment tool used at 1 and 5 minutes after birth to evaluate transition to extrauterine life. Preeclampsia affects 2-8% of pregnancies worldwide and is a leading cause of maternal and perinatal morbidity and mortality. Early risk assessment and accurate gestational age determination are essential for optimal obstetric care.

When to Use

Use Bishop Score to assess cervical ripening before labor induction — scores ≥8 indicate favorable cervix for induction. Use EPDS to screen for postpartum depression at 6-8 weeks postpartum. Use APGAR Score to assess newborn transition at 1 and 5 minutes after birth. Use Preeclampsia Risk Assessment to identify pregnant patients at increased risk and guide aspirin prophylaxis. Use EDD Calculator to determine estimated date of delivery and current gestational age based on LMP or known EDD.

Our obstetrics and gynecology calculators are developed in accordance with international guidelines including ACOG (American College of Obstetricians and Gynecologists), NICE (National Institute for Health and Care Excellence), and WHO recommendations. Each tool includes original validation data and clinically relevant cutoff values for informed clinical decision-making.

Available Obstetrics & Gynecology Calculators

Clinical Guidelines

  • ACOG Practice Bulletin: Induction of Labor (No. 107, 2024)
  • NICE Guideline: Antenatal and Postnatal Mental Health (CG192, 2024)
  • ACOG Committee Opinion: Screening for Preeclampsia (2024)
  • WHO Recommendations on Antenatal Care (2024)
Enhance your obstetrics and gynecology practice with Tabeeb+ clinic management software. Document Bishop Scores, EPDS results, and APGAR scores in patient records with automated growth chart tracking and gestational age calculations.

Frequently Asked Questions

A Bishop Score of 8 or higher (in a nulliparous woman) or 6 or higher (in a multiparous woman) indicates a favorable cervix, suggesting that induction of labor is likely to be successful. Scores below 6 typically indicate an unfavorable cervix where cervical ripening agents may be needed before induction.
The EPDS is typically administered at 6-8 weeks postpartum, but can be used at any time during the first year after childbirth. It can also be used during pregnancy for antenatal depression screening. The WHO and NICE recommend routine administration at the postnatal check.
The 1-minute APGAR score reflects the newborn's immediate transition to extrauterine life and response to resuscitation efforts. The 5-minute APGAR score reflects the infant's sustained adaptation. A 5-minute score of 7-10 is reassuring, 4-6 indicates moderate depression requiring continued monitoring, and 0-3 indicates severe depression requiring immediate intervention. The 10-minute APGAR is also assessed for infants with low 5-minute scores.

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Medical Disclaimer: This calculator is intended for use by healthcare professionals for educational and clinical decision support purposes only. It is not a substitute for professional clinical judgment.
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