Obstetrum: Calc Obstétrica

Obstetrum is the most comprehensive suite of obstetric calculators for healthcare professionals. 12 clinical tools based on ACOG, WHO 2025, FIGO, NICE, and ADA guidelines—all in one app, all offline.

Developed by a physician, for physicians. Every calculation cites its source. Every recommendation is backed by evidence.

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PRENATAL CARE
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◆ Gestational Age
4 dating methods with ACOG CO 700 hierarchy: last menstrual period (LMP), first-trimester ultrasound (CTM), fetal biometry, and IVF/ART dating. Naegele's rule with ultrasound correction.

◆ Estimated Fetal Weight
Hadlock formulas and INTERGROWTH-21st standard. Percentile charts (p3, p10, p50, p90, p97) with SGA/AGA/LGA classification. Exports reports in PDF format.

◆ Fundal Height (FH)
FH percentiles with trend tracking. Detection of intrauterine growth restriction (IUGR) and macrosomia. Chart with selectable layers.

◆ Weight Gain (IOM)
Goals based on pre-pregnancy BMI for singleton and twin pregnancies. Includes chorionicity (DCDA, MCBA, MCMA). Based on IOM 2009 and ACOG PB 231.

◆ Fetal Doppler
Umbilical artery, MCA, and ductus venosus pulsatility indices. Cerebroplacental ratio (CPR). Fetal growth factor (FGR) staging according to the ISUOG Delphi consensus.

◆ Insulin in Pregnancy
The ONLY calculator with 7 international clinical guidelines: ADA/ACOG, NICE, FIGO, ALAD, ADIPS, Diabetes Canada, and GEDE. Automatic classification of hyperglycemia pattern (fasting, postprandial, mixed). Titration protocol. Corticosteroid protocol. Evidence traceability by rule.

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OBSTETRIC EMERGENCIES
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◆ Magnesium Sulfate (MgSO₄)
Zuspan and Pritchard protocols. Loading, maintenance, and cumulative doses. Mandatory safety checklist. Renal failure alert. Toxicity SOS sheet.

◆ Bishop Score
Cervical score with 5 parameters. Recommendations for cervical ripening (misoprostol) vs. induction (oxytocin) based on scoring.

◆ Postpartum Hemorrhage (PPH)
MOTIVE Bundle Protocol (WHO 2025). 9 medications with dosages, routes of administration, contraindications, and levels of evidence (A/B/C). 3-hour critical window alert for tranexamic acid. Automatic detection of contraindications based on medical condition.

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PERINATAL PERIOD
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◆ VBAC Predictor
3 validated models: Grobman 2021 (prenatal), Grobman 2023 (at admission), and Flamm-Geiger. Eligibility gates. Exports counseling report in PDF format.

◆ Labor and Delivery
ACOG fetal monitoring categories (I/II/III). Labor progress assessment. Interactive decision tree.

◆ Preeclampsia
ACOG 2024 classification. Severity criteria checklist (tri-state). Management algorithm by gestational age. Risk factor screening.

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CLINICAL RECORDS
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◆ Registers patients with a complete history of kidney stones
◆ Generates professional PDF reports
◆ Compares records side-by-side to evaluate clinical evolution
◆ 100% local data — no servers External

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✓ Evidence-based: ACOG, WHO 2025, FIGO, NICE, ADA, ISUOG
✓ Developed by a surgeon
✓ Works completely offline
✓ Dark mode for night shifts
✓ One-time payment — no subscription or recurring fees

Clinical decision support tool. Not a substitute for professional medical judgment or institutional protocols.