Placental abruptionMANAGEMENT

OBSTETRIC PRESENTATIONS · 12 SECTIONS

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395 items

☷ Legend

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Cardiovascular Presentations71▾

Respiratory Presentations52▾

Neurological Presentations83▾

Gastrointestinal Presentations74▾

Genitourinary and Reproductive Presentations48▾

Infectious Disease Presentations148▾

Trauma Presentations89▾

Toxicologic Presentations80▾

Psychiatric Presentations26▾

Musculoskeletal and Rheumatologic Presentations96▾

Dermatology Presentations23▾

Environmental and Exposure Presentations27▾

Hematologic and Oncologic Presentations36▾

Pediatric-Specific Presentations19▾

Endocrine and Metabolic Presentations45▾

ENT and Maxillofacial Presentations27▾

Ophthalmologic Presentations19▾

Obstetric Presentations23▾

Chorioamnionitis Eclampsia Ectopic Pregnancy (Ruptured)Ectopic Pregnancy (Unruptured)HELLP Syndrome Hyperemesis gravidarum Peripartum cardiomyopathy Placenta previa Placental abruption Postpartum Endometritis Postpartum hemorrhage Postpartum infection Preeclampsia Preeclampsia-eclampsia Preterm labor Sepsis in pregnancy Septic abortion Shoulder dystocia Spontaneous Abortion (Incomplete)Spontaneous Abortion (Missed)Spontaneous Abortion (Threatened)Threatened-inevitable-incomplete abortion Umbilical cord prolapse

Systemic and Miscellaneous Presentations17▾

01Approach to the Critical Patient/attcp39

Immediate priorities

›High risk obstetric hemorrhage approach

›Resuscitation bay triggers

›Systolic blood pressure <90 mmHg

›Heart rate >120 beats/min

›Altered mental status

›Ongoing heavy vaginal bleeding

›Airway and breathing

›If respiratory distress or shock, airway support and oxygenation

›If intubation, left uterine displacement

›Circulation

›Two large bore IV lines

›Rapid transfuser readiness

›If shock, activate massive transfusion protocol

›Monitoring

›Continuous ECG

›Continuous pulse oximetry

›Noninvasive blood pressure every 3 to 5 minutes

›If unstable, arterial line for titration and frequent sampling

Hemorrhage and fetal safety

›Maternal first framework

›Maternal stabilization as priority for fetal survival

›Left uterine displacement to reduce aortocaval compression

›Normothermia and active warming

›Calcium monitoring during transfusion

›Fetal assessment integration

›Continuous external fetal monitoring if viable gestational age and resources available

›Category III fetal heart tracing as urgent obstetric escalation trigger

02History/hx57

Core presentation

›Symptom pattern

›Vaginal bleeding

›Concealed abruption possibility with minimal external bleeding

›Sudden onset bleeding

›Abdominal pain

›Constant pain

›Back pain

›Uterine activity

›Frequent contractions

›Hypertonic uterus sensation

›Decreased fetal movements

›Recent change from baseline

›Time since last perceived movement

›Timeline

›Gestational age estimate

›Symptom onset time

›Bleeding quantity progression

›Pain progression

Risk factors

›Maternal and pregnancy risks

›Hypertensive disorders of pregnancy

›Preeclampsia or gestational hypertension

›Chronic hypertension

›Trauma

›Motor vehicle collision

›Fall

›Intimate partner violence

03Physical Exam/exam34

Maternal hemodynamics and perfusion

›Vital signs and shock markers

›Hypotension

›Narrow pulse pressure

›Orthostatic changes

›Tachycardia

›Tachypnea

›Fever alternative diagnosis consideration

›Shock index elevation

›Perfusion exam

›Capillary refill delay

›Cool clammy extremities

›Altered mental status

›Oliguria or anuria

Abdominal and uterine findings

›Uterine tone and tenderness

›Firm board like uterus

›Uterine tenderness

›Persistent contractions

›Abdominal exam

›Guarding or peritonism

›Fundal height discrepancy

›Vaginal bleeding assessment

›External bleeding quantity

›Clots

›Cervical dilation status if assessed by obstetrics

Fetal assessment

›Bedside fetal status

04Differential Diagnosis/ddx20

Obstetric life threats

›Bleeding in pregnancy differential

›Placenta previa ICD-10 O44

›Vasa previa

›Uterine rupture ICD-10 O71.1

›Cervical insufficiency with bleeding

›Preterm labor with bloody show

›Hypertensive and placental disorders

›Severe preeclampsia with hepatic involvement

›HELLP syndrome ICD-10 O14.2

›Infection and inflammation

›Chorioamnionitis

Non obstetric mimics and contributors

›Abdominal pain mimics

›Appendicitis

›Ovarian torsion

›Nephrolithiasis

›Hemorrhage sources

›Cervical or vaginal laceration

›Uterine atony postpartum context

›Trauma related

›Solid organ injury with hemoperitoneum

05Laboratory Tests/lt37

Hemorrhage and anemia

›Hemoglobin and platelets overview

›Complete blood count for bleeding concern

›Hemoglobin trend for occult loss

›Platelet count for consumption and transfusion planning

›Type and screen

›Antibody screen status

›Crossmatch volume planning

›Metabolic and perfusion markers

›Venous blood gas or arterial blood gas if shock

›pH and bicarbonate for severity

›PaCO2 and PaO2 in mmHg if arterial sample

›Lactate in mmol/l

›Trend for resuscitation response

›Persistent elevation as ongoing hypoperfusion marker

Coagulopathy and DIC risk

›Coagulation panel

›INR and PT for consumption

›Rising INR as DIC marker

›Target normalization with plasma guided therapy

›aPTT for consumption

›Prolongation as DIC marker

›Fibrinogen

›Low fibrinogen as early severe abruption marker

›Replacement targets in active bleeding per obstetric massive hemorrhage protocols

›D dimer context

›Pregnancy baseline elevation limitation

›Trend and extreme elevation supportive of DIC

06Diagnostic Tests/dt40

Scoring Systems

›Risk stratification and severity frameworks

›Shock index

›Heart rate divided by systolic blood pressure for early shock detection

›Rising value as escalation trigger

›ISTH DIC score adaptation

›Platelets, PT prolongation, fibrin related markers, fibrinogen

›Higher score supportive of overt DIC in bleeding patient

MRI

›Limited acute role

›Stable patient evaluation only

›Placental pathology characterization when diagnosis uncertain

›Not a time critical test in hemorrhage

›Practical constraints

›Availability and time delays

›Monitoring limitations in unstable patient

›Generally avoided for primary diagnosis

›Radiation considerations

›Use only when alternative diagnosis suspected and benefits outweigh risk

›Trauma evaluation pathways when indicated

›Alternative diagnosis support

›Intraabdominal injury after trauma

›Non obstetric abdominal catastrophe in pregnancy

Ultrasound (or US)

›Bedside imaging use

›Placental evaluation

›Retroplacental hematoma detection

07Disposition/dispo20

Level of care

›Admission pathways

›Labor and delivery admission

›Suspected or confirmed abruption

›Any nontrivial bleeding with pain or uterine hypertonus

›ICU or high acuity monitoring

›Hemodynamic instability

›Ongoing transfusion requirement

›DIC or evolving coagulopathy

›Operative readiness

›Immediate access to cesarean delivery capability when indicated

›Anesthesia presence for unstable patient

Transfer and discharge

›Transfer criteria

›No obstetric operative capability locally

›Transfer to tertiary obstetric center

›Ongoing resuscitation during transfer

›Extreme prematurity with neonatal care needs

›Discharge criteria

›Generally uncommon for suspected abruption

›Minimal bleeding without pain and reassuring fetal assessment as obstetric decision only

›Clear return precautions and rapid follow up plan

08Treatment/t63

Resuscitation and hemorrhage control

›Immediate stabilization bundle

›Positioning

›Left uterine displacement

›Supine avoidance if symptomatic hypotension

›Fluids and products

›Balanced crystalloid as bridge only

›Early blood products for ongoing hemorrhage

›Massive transfusion protocol

›If ongoing hemorrhage with shock, activate immediately

›Targeted hemostatic resuscitation with lab guided adjustments

›Temperature and calcium

›Active warming

›IV calcium replacement during high volume transfusion

Blood products and hemostasis

›Packed red blood cells

›Transfusion triggers individualized to shock and ongoing bleeding

›Goal perfusion and oxygen delivery rather than single hemoglobin number

›Plasma and platelets

›If coagulopathy with bleeding, plasma support

›If thrombocytopenia with bleeding or operative need, platelets support

›Fibrinogen replacement

›Cryoprecipitate or fibrinogen concentrate based on local protocol

›If fibrinogen low with bleeding, replace early

›Repeat fibrinogen monitoring after replacement

›Tranexamic acid

›If massive obstetric hemorrhage, consider per institutional obstetric hemorrhage protocol

›Greatest evidence base in postpartum hemorrhage

09Special Populations/sp26

Pregnancy

›Pregnancy specific physiology and safety

›Increased plasma volume with delayed hypotension

›Tachycardia as early shock sign

›Concealed hemorrhage risk

›Aortocaval compression effects

›Left uterine displacement impact on perfusion

›Medication safety

›Avoid teratogenic agents

›Prefer obstetric approved hemorrhage protocols

›Coding and terminology

›Abruptio placentae ICD-10 O45.0 to O45.9

›SNOMED CT concept abruptio placentae

Geriatric

›Older pregnant patient considerations

›Higher baseline cardiovascular risk

›Lower tolerance for hypovolemia

›Earlier ICU threshold

›Medication sensitivity

›Lower opioid dosing thresholds

›Careful antihypertensive titration

Pediatrics

›Adolescent pregnancy considerations

›Confidentiality and safeguarding needs

›Screening for interpersonal violence

›Social work involvement when appropriate

›Lower baseline blood volume

›Faster decompensation risk

10Background/b33

Epidemiology

›Disease frequency and outcomes

›Placental abruption as a cause of antepartum hemorrhage

›Most common in third trimester

›Can occur at any gestational age

›Maternal outcomes

›Hemorrhagic shock risk

›DIC risk with severe abruption

›Fetal outcomes

›Preterm birth risk

›Fetal growth restriction association

›Stillbirth risk in severe cases

Pathophysiology

›Mechanism

›Premature separation of placenta from uterine wall

›Retroplacental hematoma formation

›Disruption of uteroplacental exchange

›Bleeding patterns

›Revealed bleeding with vaginal bleeding

›Concealed bleeding with intramyometrial tracking

›Coagulopathy pathway

›Tissue factor release and consumptive coagulopathy

›Hypofibrinogenemia as early marker in severe cases

Therapeutic Considerations

›Management principles

›Maternal stabilization reduces fetal risk

›Oxygen delivery and uterine perfusion dependence

›Delivery as definitive treatment for severe cases

11Patient Discharge Instructions/pdi17

copy discharge instructions

›Discharge counseling bundle

›Return to emergency care immediately for any of the following

›Heavy vaginal bleeding

›New or worsening abdominal pain

›Regular painful contractions

›Decreased fetal movements

›Dizziness, fainting, chest pain, shortness of breath

›Severe headache, vision changes, right upper quadrant pain

›Activity guidance

›Pelvic rest until obstetric follow up

›Avoid strenuous activity until cleared

›Follow up plan

›Same day obstetric assessment if any recurrence of symptoms

›Scheduled obstetric follow up within 24 to 48 hours if discharged by obstetrics

›Medication guidance

›Avoid NSAIDs unless explicitly advised by obstetrics

›Use prescribed analgesics only as directed

12References/r9

Clinical guidelines and key sources

›Core guidance sources

›ACOG practice bulletins and committee opinions on antepartum hemorrhage and placental abruption

›RCOG guidelines on antepartum hemorrhage

›Society for Maternal Fetal Medicine consult series on late pregnancy bleeding and placental complications

›Obstetric massive transfusion and hemorrhage protocols with fibrinogen focused resuscitation

›Evidence based summaries

›Major obstetric texts and review articles on diagnosis and ultrasound limitations

›DIC scoring framework publications including ISTH DIC score

›Trauma in pregnancy guidelines addressing placental abruption risk after blunt trauma

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Reviewed by SymptomDx Medical Team · Last reviewed August 18, 2026

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