Learning Objectives
By the end of this module, you will be able to:
Understand the mechanisms of injury and how they affect patient care.
Recognize and manage different types of traumatic injuries, including bleeding, fractures, and shock.
Perform spinal motion restriction procedures.
Prioritize care in multi-system trauma.
Section 1: Mechanism of Injury (MOI)
Importance
Predicts Potential Injuries
Guides Assessment
Types of MOI
Blunt Trauma
Falls, motor vehicle collisions (MVCs), assaults.
Forces: Compression, deceleration, shearing.
Penetrating Trauma
Stab wounds, gunshot wounds.
Damage depends on object velocity and path.
Section 2: Bleeding Control
Types of Bleeding
Arterial: Bright red, spurting with heartbeat.
Venous: Dark red, steady flow.
Capillary: Oozing, slow flow.
Control Techniques
Direct Pressure
Apply firm pressure with gloved hand and dressing.
Elevation
Raise the injured area above heart level (if no fractures).
Pressure Dressings
Bandages that apply continuous pressure.
Tourniquet
Use when direct pressure is ineffective.
Apply proximal to the injury.
Document time applied.
Hemostatic Agents
Substances that promote clotting.
Clotting gauze (ex. QuikClot)
Section 3: Soft Tissue Injuries
Types
Abrasions
Scrapes affecting the outer skin layers.
Lacerations
Cuts with either smooth or jagged edges.
Avulsions
Flap of skin torn loose or completely detached.
Punctures/Penetrations
Deep wounds caused by sharp objects.
Amputations
Complete severing of a body part.
Management
Control bleeding.
Prevent contamination.
Preserve amputated parts (wrap in sterile dressing, keep cool).
Section 4: Musculoskeletal Injuries
Types
Fractures
Break in the continuity of a bone.
Open Fracture: Bone protrudes through the skin.
Closed Fracture: Skin remains intact.
Dislocations
Displacement of bones at a joint.
Sprains
Stretching or tearing of ligaments.
Strains
Overstretching or tearing of muscles or tendons.
Assessment
Signs and Symptoms: Pain, swelling, deformity, inability to move.
Management
Immobilization
Splint fractures and dislocations.
Check distal pulses before and after splinting.
Spinal Motion Restriction
Use when spinal injury is suspected.
Apply cervical collar, secure patient to backboard.
More information can be found in: NJ State Resources.
Section 5: Shock (Hypoperfusion)
Types of Shock
Hypovolemic Shock:
Cause: Severe blood or fluid loss, common in trauma cases.
Signs: Rapid, weak pulse; low blood pressure; pale, cool, and clammy skin.
Management: Control bleeding, administer IV fluids (NS or LR), and provide oxygen.
Cardiogenic Shock:
Cause: Poor heart function, often following a heart attack or CHF.
Signs: Low blood pressure, pulmonary edema, difficulty breathing, cyanosis.
Management: Provide high-flow oxygen, assist ventilation if needed, and initiate IV fluids cautiously. Consider medications like dopamine to support blood pressure.
Distributive Shock:
Cause: Blood vessel dilation from conditions like septic shock or anaphylaxis.
Signs: Warm, flushed skin (early); rapid, weak pulse; hypotension.
Management:
Anaphylactic Shock: Epinephrine, antihistamines, and steroids.
Septic Shock: IV fluids, antibiotics, and vasopressors if needed.
Obstructive Shock:
Cause: Blockage of blood flow, such as in pulmonary embolism or tension pneumothorax.
Signs: Difficulty breathing, cyanosis, hypotension, jugular vein distention.
Management: Treat the underlying cause (ex., needle decompression for pneumothorax).
Signs and Symptoms
Altered mental status.
Pale, cool, clammy skin.
Rapid, weak pulse.
Rapid breathing.
Low blood pressure (late sign).
Management
Control external bleeding.
Maintain airway; administer oxygen.
Keep patient warm.
Rapid transport.