Study guide
8.3 Abdominal, Pelvic & Extremity Trauma in Pediatric Patients
BCEN CPEN Certified Pediatric Emergency Nurse Exam
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1 Chapter 1: Exam Overview, Triage Process & Initial Emergency Assessment
1.1 CPEN Exam Logistics, Blueprint & Certification Overview 1.2 Pediatric Triage Systems & Acuity Categorization 1.3 Pediatric Assessment Triangle (PAT) & Initial Impression 1.4 Primary & Secondary Pediatric Emergency Assessment 1.5 Age-Specific Vital Signs, Developmental Considerations & Pain Scales
2 Chapter 2: Pediatric Respiratory Emergencies
2.1 Upper Airway Obstruction 2.2 Lower Airway Emergencies 2.3 Respiratory Distress vs. Respiratory Failure & Airway Management
3 Chapter 3: Pediatric Cardiovascular Emergencies
3.1 Pediatric Dysrhythmias & ECG Analysis 3.2 Congenital Heart Defects 3.3 Acquired Heart Disease & Heart Failure
4 Chapter 4: Pediatric Neurological Emergencies
4.1 Pediatric Seizures, Status Epilepticus & Febrile Seizures 4.2 Altered Mental Status, Increased ICP & Head Trauma 4.3 Pediatric Central Nervous System Infections
5 Chapter 5: Pediatric Gastrointestinal & Genitourinary Emergencies
5.1 Pediatric GI Surgical Emergencies 5.2 Pediatric Dehydration, Gastroenteritis & Fluid Resuscitation Protocols 5.3 Pediatric GU & Renal Emergencies
6 Chapter 6: Pediatric Endocrine, Metabolic & Hematologic/Oncologic Emergencies
6.1 Diabetic Ketoacidosis (DKA) & Hypoglycemia in Pediatric Emergency Patients 6.2 Electrolyte Imbalances & Inborn Errors of Metabolism 6.3 Sickle Cell Disease Crisis & Pediatric Oncologic Emergencies
7 Chapter 7: Pediatric Musculoskeletal, Integumentary & ENT/Ophthalmic Emergencies
7.1 Pediatric Musculoskeletal Injuries & Fractures 7.2 Pediatric Dermatologic Emergencies & Rashes 7.3 Pediatric ENT & Ocular Emergencies
8 Chapter 8: Pediatric Trauma Emergencies
8.1 Pediatric Trauma Resuscitation & Anatomical Vulnerabilities 8.2 Head, Spinal & Thoracic Trauma in Children 8.3 Abdominal, Pelvic & Extremity Trauma in Pediatric Patients
9 Chapter 9: Child Maltreatment, Toxicology & Behavioral Emergencies
9.1 Child Abuse, Neglect, Non-Accidental Trauma & Mandatory Reporting 9.2 Pediatric Toxicology, Toxidromes & Emergency Antidotes 9.3 Pediatric Behavioral & Mental Health Crisis Management
10 Chapter 10: Pediatric Multi-System Emergencies, Shock & Thermal Injuries
10.1 Pediatric Shock Recognition & Classification 10.2 Pediatric Sepsis, Septic Shock & Multiple Organ Dysfunction Syndrome 10.3 Pediatric Anaphylaxis & Severe Allergic Reactions 10.4 Submersion Injuries, Drowning & Thermal/Burn Emergencies
11 Chapter 11: Professional Practice, Legal, Ethical & Safety Standards
11.1 Legal & Ethical Considerations 11.2 Patient Safety, Medication Error Prevention & Weight-Based Dosing 11.3 Family-Centered Care, Communication & Disaster/Surge Preparedness
8.3 Abdominal, Pelvic & Extremity Trauma in Pediatric Patients
Key Takeaways Explain This Topic AI
Hemodynamically stable pediatric patients with blunt solid organ injuries (spleen and liver) are successfully managed non-operatively in ICU settings with serial abdominal exams and hemoglobin monitoring.
A direct impact to the epigastrium (e.g., bicycle handlebar collision) should raise immediate suspicion for duodenal hematoma, pancreatic transection, or traumatic bowel perforation.
Unstable pelvic fractures require prompt mechanical stabilization by placing a pelvic binder or sheet centered directly over the greater trochanters to reduce retroperitoneal volume and control hemorrhage.
Pediatric Massive Transfusion Protocols (MTP) utilize balanced 1:1:1 ratios of Packed Red Blood Cells (PRBCs), Fresh Frozen Plasma (FFP), and Platelets in weight-based aliquots (10 to 20 mL/kg) to prevent trauma-induced coagulopathy.
Last updated: July 2026
8.3 Abdominal, Pelvic & Extremity Trauma in Pediatric Patients
Abdominal and pelvic injuries represent major sources of occult hemorrhage in pediatric trauma. Because children possess flexible anatomical structures and robust cardiovascular compensation, significant intra-abdominal bleeding can occur without early drops in systemic blood pressure. Emergency nurses must understand solid organ management, mechanism-specific injuries, and rapid transfusion protocols.
Pediatric Solid Organ Injury (Spleen & Liver)
Blunt abdominal trauma in children most commonly injures the spleen (most common overall) and the liver (second most common). Anatomically, these organs are larger relative to body mass, extend below the costal margin, and have thin capsules.
Clinical Presentation & Non-Operative Management (NOM)
Splenic Injury : Left upper quadrant tenderness, guarding, and Kehr’s sign (referred left shoulder pain from subdiaphragmatic blood irritating the phrenic nerve).
Liver Injury : Right upper quadrant pain, right lower rib cage tenderness, and abdominal wall ecchymosis.
Diagnostic Tools : Focused Assessment with Sonography for Trauma ( FAST ) scan detects free intraperitoneal fluid. Contrast-enhanced CT scanning grades lacerations (Grades I–V).
Non-Operative Standard : Over 90% of hemodynamically stable pediatric solid organ injuries are managed non-operatively .
NOM Nursing Protocol : PICU admission, strict bed rest, serial abdominal exams, and serial hemoglobin/hematocrit monitoring every 4 to 6 hours. Operative intervention is dictated by hemodynamic instability despite > 40 mL/kg PRBC transfusion , not by initial CT grade.
- Mechanism-Specific GI & Pancreatic Trauma
- 1. Handlebar Impact & Duodenal Hematoma
Mechanism : Small-surface impact (bicycle handlebar, sled end) directly compresses the retroperitoneal duodenum against the lumbar spine.
Duodenal Hematoma : Submucosal blood accumulation progressively obstructs the duodenal lumen.
Delayed Presentation : Children present 24 to 48 hours post-injury with intractable bilious vomiting, epigastric pain, and proximal bowel obstruction.
Management : Managed conservatively with nasogastric tube decompression and Total Parenteral Nutrition (TPN) for 2 to 3 weeks.
2. Pancreatic Trauma
Epigastric compression against the spine causes contusion, laceration, or transection. Patients present with epigastric pain radiating to the back, vomiting, and elevated serum amylase/lipase levels.
3. Traumatic Bowel Perforation & Chance Fractures
Lap-Belt Injury : High-speed deceleration with a lap belt causes abdominal hyperflexion.
Chance Fracture : Flexion-distraction lumbar fracture (L2–L4) frequently associated with bowel mesentery tears.
Seatbelt Sign : Transverse abdominal ecchymosis carries > 50% incidence of underlying hollow viscus injury.
Pelvic Fractures & Emergency Hemorrhage Control
Pelvic fractures indicate severe kinetic force. Disruption of the cartilaginous pelvic ring expands retroperitoneal volume, causing massive arterial and venous plexus hemorrhage.
Application of Pelvic Binders
Apply a commercial pelvic binder or folded bedsheet.
CRITICAL LANDMARK : Center the binder directly over the greater trochanters (NOT the iliac crests). Trochanteric compression reduces retroperitoneal volume, stabilizes bone fragments, and tamponades venous bleeding.
Avoid Manipulation : Never perform repetitive manual pelvic rocking, which dislodges blood clots and accelerates hemorrhage.
Pediatric Extremity Trauma & Compartment Syndrome
Extremity injuries include fractures, dislocations, and crush trauma. Salter-Harris fractures (involving epiphyseal growth plates) require precise reduction to prevent growth arrest.
Acute Compartment Syndrome
Elevated intra-fascial pressure compromises capillary perfusion, leading to tissue necrosis.
Early & Most Reliable Sign : Pain out of proportion to the injury and severe pain elicited upon passive stretch of affected muscles.
The 6 Ps : Pain, Pressure, Paresthesia, Pallor, Paralysis, and Pulselessness (paralysis and pulselessness are late signs).
Nursing Actions : Immediately remove restrictive casts or dressings down to skin. Position the limb at HEART LEVEL (do NOT elevate above heart, as elevation reduces perfusion pressure). Notify surgery for emergency fasciotomy .
Massive Transfusion Protocol (MTP) in Pediatric Trauma
Pediatric MTP is triggered by persistent hemorrhagic shock despite initial crystalloid resuscitation or replacement of > 50% blood volume in 3 hours.
Balanced Resuscitation (1:1:1 Ratio)
Pediatric MTP delivers a balanced 1:1:1 ratio of PRBCs, Fresh Frozen Plasma (FFP), and Platelets in weight-based aliquots (10 to 20 mL/kg) to prevent trauma-induced coagulopathy.
- Component Pediatric Dosing Target Endpoint
- PRBCs 10 to 20 mL/kg Hemoglobin > 8 to 10 g/dL
- FFP 10 to 20 mL/kg Replace clotting factors; INR < 1.5
- Platelets 10 to 20 mL/kg (or 1 unit/10 kg) Platelets > 100,000/mcL
- Cryoprecipitate 5 to 10 mL/kg (or 1 unit/5 kg) Fibrinogen > 150 to 200 mg/dL
- Managing Resuscitative Complications
Hypocalcemia : Citrate in blood binds serum calcium. Monitor ionized calcium and administer IV calcium gluconate (60–100 mg/kg) or IV calcium chloride (20 mg/kg via central line).
Hypothermia & Hyperkalemia : Administer all blood products through high-flow fluid warmers. Use fresh PRBCs (< 7 days old) to prevent hyperkalemic cardiac arrest.
Clinical Scenario: Bicycle Handlebar Impact
A 9-year-old male (30 kg) presents 36 hours post-bicycle crash with worsening epigastric pain and bilious vomiting.
Assessment : Epigastric bruised impression, focal rebound tenderness, double-bubble sign on X-ray. Contrast CT confirms duodenal hematoma.
Nursing Interventions : NPO status, nasogastric tube insertion attached to low intermittent suction, IV D5 0.45% NS at 1.5x maintenance, baseline amylase/lipase/CBC labs, and admission for conservative non-operative management.