OB/GYN - LABOR / DELIVERY + OBSTETRIC EMERGENCIES
YEAR 3 | PAGE 30F - STABILIZE -> MATERNAL / FETAL STATUS -> TIME-CRITICAL NEXT STEP
C. LABOR + DELIVERY REASONING FRAME
| Decision | What to integrate | Shelf / ward logic |
|---|---|---|
| Is this labor? | Contractions, cervical change, membrane status, gestational age and presentation. | Distinguish true labor from symptoms without progressive cervical change; preterm context changes the entire pathway. |
| Is labor progressing? | Stage of labor, dilation/effacement/station, contraction pattern, fetal position and adequacy of time. | Do not diagnose arrest from one snapshot. Use the current labor framework and ask whether augmentation, observation or operative delivery is appropriate. |
| How is the fetus tolerating labor? | Baseline, variability, accelerations/decelerations, contraction timing and maternal context. | Interpret the tracing as a pattern. Correct reversible causes and escalate when persistent abnormalities imply fetal compromise. |
| What delivery route? | Presentation, prior uterine surgery, placental location, fetal/maternal status, labor progress and contraindications. | The exam often gives several technically possible routes but asks for the safest route now. |
| What changed postpartum? | Bleeding, uterine tone, retained tissue, laceration, infection, blood pressure, pain, cardiopulmonary symptoms and mental health. | Delivery does not end risk. Postpartum hemorrhage, hypertension, infection and thromboembolism remain time-sensitive. |
D. OBSTETRIC EMERGENCIES - RECOGNIZE THE TRIGGER
| Threat | Clues to prioritize | Immediate reasoning sequence |
|---|---|---|
| Severe preeclampsia / eclampsia / HELLP | Severe-range pressure or end-organ symptoms, seizure, hemolysis/liver/platelet abnormalities, fetal/placental compromise. | Stabilize maternal airway/circulation, prevent/treat seizure as indicated, control severe hypertension and determine delivery timing with the supervised obstetric team. |
| Third-trimester bleeding | Painful vs painless bleeding, uterine tone/tenderness, fetal status, placental location, hemodynamics. | Stabilize first; avoid unsafe examination when placenta previa is possible; use ultrasound/obstetric evaluation to distinguish placental causes and urgency. |
| Cord prolapse / uterine rupture / shoulder dystocia | Sudden fetal bradycardia after membrane rupture, prior uterine scar + acute pain/loss of station, or impacted shoulder after head delivery. | These are action-before-complete-diagnosis scenarios: call for help, perform the immediate maneuver/pathway and expedite definitive delivery as appropriate. |
| Postpartum hemorrhage | Excessive bleeding with atony, retained tissue, trauma or coagulopathy; tachycardia/hypotension may lag. | Resuscitate while identifying the cause. Use the 4 Ts framework (Tone, Trauma, Tissue, Thrombin) and escalate rapidly if bleeding persists. |
| Preterm labor / PPROM | Gestational age, contractions/cervical change, membrane rupture, infection, fetal status and contraindication to expectant management. | Balance prematurity benefit against infection, bleeding, fetal compromise or maternal instability; gestational age drives medications and delivery decisions. |
E. FETAL MONITORING: DO NOT NAME THE CATEGORY AND STOP
- Baseline + variability first: ask whether fetal autonomic function appears preserved before chasing individual decelerations.
- Match deceleration to contractions: timing and shape suggest different mechanisms; the management question is whether the pattern is reassuring, needs reversible-cause correction, or requires escalation.
- Reassess after intervention: maternal position, blood pressure, uterine tachysystole, medications and fluid status can change the tracing; response is new data.
E. FETAL MONITORING: DO NOT NAME THE CATEGORY AND STOP — Direct video repair
| APGO - Topic 11: Intrapartum Care | APGO - Topic 26: Intrapartum Fetal Surveillance |
|---|---|
| APGO - Topic 22: Abnormal Labor APGO - Topic 27: Postpartum Hemorrhage 2026/27 clerkship-expanded edition - verify school and official exam updates before testing | APGO - Topic 18: Preeclampsia-Eclampsia APGO - Topic 23: Third Trimester Bleeding |