Electrical Burn InjuryMANAGEMENT

ENVIRONMENTAL AND EXPOSURE PRESENTATIONS · 12 SECTIONS

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686 items

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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▾

Acute Mountain Sickness Arterial Gas Embolism Bee-Wasp Sting (Anaphylaxis)Chilblains Ciguatera Fish Poisoning Coral Cut Decompression Sickness Electrical Burn Injury Envenomation (snake, spider, insect)High Altitude Cerebral Edema (HACE)High Altitude Pulmonary Edema (HAPE)High-altitude illness Hypothermia Hypothermia (Mild)Hypothermia (Severe)Immersion Foot Lightning Strike Injury Scombroid Fish Poisoning Scorpion Envenomation Sea Urchin Injury Shark Bite Snake Envenomation Spider Bite (Black Widow)Spider Bite (Brown Recluse)Stingray Spine Injury Tick paralysis White Phosphorus Burn

Hematologic and Oncologic Presentations36▾

Pediatric-Specific Presentations19▾

Endocrine and Metabolic Presentations45▾

ENT and Maxillofacial Presentations27▾

Ophthalmologic Presentations19▾

Obstetric Presentations23▾

Systemic and Miscellaneous Presentations17▾

01Approach to the Critical Patient/attcp58

Immediate priorities

›Airway and circulation threats

›Cardiac arrest or peri-arrest

›VF and pulseless VT require immediate defibrillation

›Asystole and PEA follow standard ACLS protocols

›Occurs in approximately 20% of high-voltage injuries

›Airway compromise

›Facial or oropharyngeal burns

›Inhalation injury from arc flash

›Early intubation before progressive edema

›Hemodynamic instability

›Hypovolemia from third-spacing and deep tissue loss

›SBP < 90 mmHg

›MAP < 65 mmHg

›If cardiac arrest, initiate CPR and ACLS immediately

›Electrical injuries are highly resuscitable

›Prolonged resuscitation justified especially in young patients

›Voltage and pathway risk stratification

›High-voltage exposure (>= 1000 V) mandates full resuscitation bay

›Strongest predictor of arrhythmia (AUC 0.804)

›Industrial power lines and transformers

›Low-voltage exposure (< 1000 V) with concerning features

›Loss of consciousness

›Transthoracic current pathway

›Current pathway determines organ risk

›Hand-to-foot pathway: cardiac, thoracic, and abdominal organs at risk

›Hand-to-hand pathway: transthoracic risk highest

02History/hx71

Mechanism and exposure details

›Voltage classification

›High voltage (>= 1000 V)

›Industrial settings, power lines, transformers

›Strongest predictor of severe injury and arrhythmia

›Low voltage (< 1000 V)

›Household circuits 120-240 V

›Generally lower systemic risk unless prolonged contact

›Lightning strike

›Direct current, single massive discharge

›Unique injury pattern distinct from other electrical burns

›Current type and contact duration

›Alternating current (AC)

›Causes tetanic muscle contraction preventing release

›Longer contact time increases tissue damage

›Direct current (DC)

›Single forceful muscular throw from source

›Lightning is DC; household wiring is AC

›Duration of contact

›Prolonged contact markedly worsens prognosis

›Tetany from AC prevents voluntary release

›Current pathway

›Entry and exit wound locations

›Hand-to-foot: high risk for cardiac and visceral injury

›Hand-to-hand: transthoracic pathway, highest cardiac risk

›Head-to-ground: CNS and spinal cord risk

›Vertical pathway

›Upper-to-lower body traversal

03Physical Exam/exam70

Vitals and general assessment

›Hemodynamic stability

›Blood pressure

›SBP < 90 mmHg indicates hypovolemia or cardiogenic shock

›MAP < 65 mmHg triggers resuscitation escalation

›Heart rate

›Tachycardia from pain, hypovolemia, or arrhythmia

›Bradyarrhythmias requiring urgent management

›Oxygen saturation

›SpO2 < 92% prompts airway reassessment

›Inhalation injury concern if burns near face

›Temperature

›Hypothermia from prolonged outdoor exposure

›Hyperthermia from extensive burn

Wound assessment

›Entry and exit wound examination

›Entry wound characteristics

›Charred, depressed, centrally necrotic lesion

›Often smaller than exit wound

›Exit wound characteristics

›Often larger and more destructive

›May be on ground-contact surface (heel, sole)

›Iceberg phenomenon

›Cutaneous burns dramatically underestimate deep tissue injury

›True tissue destruction requires surgical reassessment

›Burn wound extent and depth

›Total body surface area estimate

›Rule of nines for adults

04Differential Diagnosis/ddx47

Life-threatening diagnoses

›Cardiac emergencies

›Ventricular fibrillation from electrical injury

›ICD-10 T75.4 electric shock

›Requires immediate defibrillation

›Acute coronary syndrome

›Troponin elevation may represent myocardial injury

›ECG changes: ST elevation, bundle branch block

›Arrhythmia from direct myocardial injury

›AV conduction block

›Sinus arrest

›Rhabdomyolysis and renal failure

›Myoglobinuria leading to acute kidney injury

›ICD-10 M62.82 rhabdomyolysis

›CK elevation is key marker

›DIC with severe injuries

›Coagulation profile abnormalities

›ICD-10 D65 disseminated intravascular coagulation

›Compartment syndrome

›Fascial compartment pressure elevation

›ICD-10 M79.A3 compartment syndrome traumatic

›Limb-threatening without fasciotomy

Traumatic and other causes

›Lightning strike

›Direct current versus AC household injury

›Lichtenberg figures (ferning pattern) pathognomonic

›Different cardiac effect: asystole more common than VF

›Thermal or flame burn

05Laboratory Tests/lt44

Core resuscitation labs

›Rhabdomyolysis evaluation

›Creatine kinase (CK)

›Key marker for rhabdomyolysis severity

›CK > 850 U/L is an independent risk factor for arrhythmia

›Serial monitoring every 6-8 hours recommended

›Urinalysis with microscopy

›Dipstick positive for blood without RBCs on microscopy indicates myoglobinuria

›Urine pH monitoring if alkalinizing therapy initiated

›Creatinine and BUN

›AKI from myoglobin-induced tubular injury

›Baseline and serial monitoring

›Cardiac biomarkers

›Troponin

›Elevated in approximately 5.7% of cases

›CK > 850 and troponin > 250 ng/mL predict arrhythmia

›Serial troponin if initial borderline

›CK-MB

›Less useful than troponin for cardiac risk stratification

›Confounded by large skeletal muscle CK release

Metabolic and electrolyte panel

›Electrolytes

›Potassium

›Hyperkalemia from rhabdomyolysis and cell lysis

›Hypokalemia reported in 18% of cases

›Calcium

›Hypocalcemia reported in 3.3% of cases

›Calcium sequestration in damaged muscle

06Diagnostic Tests/dt80

Scoring Systems

›Arrhythmia risk prediction

›High-voltage exposure (>= 1000 V)

›AUC 0.804 for arrhythmia prediction

›Single strongest predictor in multivariate models

›Combined laboratory risk model

›CK > 850 U/L plus troponin > 250 ng/mL

›Lactate > 2.1 mmol/L as independent predictor

›LOC at time of injury

›Burn severity tools applicable

›Baux score (age + TBSA) for mortality estimation in thermal burns

›Not validated specifically for electrical injury

›Monitoring duration guidance

›Low-risk criteria for abbreviated monitoring

›Low-voltage exposure (< 1000 V)

›No LOC, no transthoracic pathway

›Normal ECG and normal troponin

›Normal cardiac exam

›High-risk criteria requiring extended monitoring (>= 24 hours)

›High-voltage exposure

›Any LOC

›Abnormal initial ECG

›Troponin elevation

MRI

›MRI indications in electrical injury

›Spinal cord injury evaluation

›Neurological deficits without clear bony injury on CT

›MRI spine with and without contrast

›Direct electrical injury to cord distinct from compressive injury

›Delayed neurological deficits

›Progressive weakness days to weeks post-injury

›White matter changes on MRI brain

›Demyelinating injury pattern

›Soft tissue extent of injury

›MRI of affected extremity in selected cases

›T2 signal identifies devitalized muscle

›Guides surgical planning for debridement

›MRI limitations

›Not appropriate for acutely unstable patients

›Implanted device compatibility check required

›Less useful than clinical exam for acute compartment syndrome

›Head CT indications

›LOC or altered mental status

›Exclude intracranial hemorrhage from fall

›Diffuse axonal injury assessment

›Fall from height mechanism

›Standard trauma head CT protocol

›Seizure activity

›Hemorrhage or structural lesion exclusion

›CT spine and trauma survey

›Cervical spine CT when fall or blast mechanism

›NEXUS criteria application for clearance in low-risk cases

›Vertebral fracture from tetanic contraction (thoracolumbar)

›CT chest abdomen pelvis

›Blunt trauma from electrical throw

›Visceral injury from hand-to-foot pathway

›CT angiography

›Vascular injury suspected

›Absent Doppler signal in burned extremity

›Thrombosis from direct vessel wall injury

›Superior mesenteric artery injury in hand-to-foot pathway

Ultrasound

›POCUS in electrical injury

›Cardiac assessment

›Global LV function estimate

›Wall motion abnormalities from myocardial injury

›Pericardial effusion screen

›Volume status assessment

›IVC collapsibility for fluid responsiveness guidance

›Integrate with clinical exam and urine output

›Extremity Doppler

›Distal perfusion in burned or swollen extremities

›Triphasic versus monophasic versus absent signal

›Guides need for CT angiography or vascular surgery

›Compartment syndrome adjunct

›Not replacement for direct pressure measurement

›Can identify absent flow in fascial compartments

›Echocardiography

›Formal TTE indications

›Troponin elevation

›Hemodynamic instability

›Wall motion abnormality on POCUS

›Class IIa recommendation for echocardiography with myocardial injury markers

07Disposition/dispo38

Admission indications

›High-voltage injury (>= 1000 V)

›Mandatory admission for all cases

›Minimum 24 hours cardiac monitoring

›Burn center referral per ABA criteria

›ICU indications

›Hemodynamic instability

›Respiratory compromise requiring support

›Severe rhabdomyolysis with oliguria

›Low-voltage injury with high-risk features

›Admission for any of the following

›LOC or syncope

›Abnormal ECG

›Elevated troponin

›Dark urine or CK elevation

›Significant burns requiring wound care

Discharge criteria

›Low-risk low-voltage injuries may be discharged after observation

›Criteria for discharge

›< 1000 V exposure

›No LOC at scene

›Normal neurological exam

›Normal initial ECG

›Normal troponin at 4-6 hours

›Normal CK or mild elevation without dark urine

›Minor burns manageable outpatient

›Minimum observation period 4-6 hours

›Arrhythmia risk window

08Treatment/t81

Immediate resuscitation

›Fluid resuscitation

›Crystalloid selection

›Lactated Ringer preferred

›Normal saline acceptable alternative

›Rate and targets

›Urine output target 1 mL/kg/h for high-voltage injuries

›Higher than standard burn goal of 0.5 mL/kg/h to prevent renal tubular myoglobin precipitation

›Titrate infusion rate to urine output response

›Volume requirements

›May require up to 10 L/day in severe rhabdomyolysis

›Parkland formula underestimates in electrical burns

Rhabdomyolysis management

›Urine alkalinization

›Sodium bicarbonate infusion

›50 mEq sodium bicarbonate in 1 L D5W

›Target urine pH > 6.5

›Theoretical benefit preventing myoglobin precipitation

›Evidence base limited; expert consensus recommendation

›Monitor serum pH

›Avoid systemic alkalosis

›pH > 7.50 prompts rate reduction

›Osmotic diuresis adjunct

›Mannitol

›25 g IV bolus may augment urine flow

›Monitor serum osmolality; osmolal gap < 10 target

›Limited high-quality evidence; use selectively

›Avoid if oliguria unresponsive to fluid

›Furosemide generally avoided

›May acidify urine and worsen myoglobin precipitation

Surgical interventions

›Fasciotomy

›Indications

›Compartment pressure > 30 mmHg

›Clinical compartment syndrome regardless of pressure

›Technique principles

›All compartments of affected extremity

›Skin and fascial release

›Wound management post-fasciotomy

›Escharotomy

›Circumferential full-thickness burns with vascular compromise

›Absent or diminishing distal Doppler signals

›Chest escharotomy for ventilatory compromise

›Timing

›Immediate when vascular compromise present

›Burn surgeon performs or guides

›Wound debridement

›Serial surgical debridement of devitalized tissue

›Timing guided by demarcation of tissue viability

›Amputation may be required for non-viable extremities

Cardiac management

›Arrhythmia treatment

›Ventricular fibrillation

›Defibrillation 200 J biphasic

›Standard ACLS algorithms

›Sustained VT with pulse

›Cardioversion or antiarrhythmic per ACLS

›Amiodarone 150 mg IV over 10 minutes

›Bradyarrhythmia or heart block

›Atropine 0.5 mg IV for symptomatic bradycardia

›Transcutaneous pacing if atropine ineffective

›Hemodynamic support

›If fluid-refractory hypotension

›Norepinephrine 0.1-0.3 mcg/kg/min, titrate to MAP > 65 mmHg

›Vasopressin 0.03 units/min as adjunct

›ICU-level monitoring required for vasopressors

Analgesia and wound care

›Pain management

›Severe pain: opioid analgesia

›Morphine 0.05-0.1 mg/kg IV every 4-6 hours

›Fentanyl 1-2 mcg/kg IV for procedural pain

›Moderate pain

›Acetaminophen 1 g PO/IV every 6 hours

›Ketorolac 15-30 mg IV every 6 hours with renal monitoring

›Tetanus prophylaxis

›Update tetanus immunization for all open wounds

›Tdap if no booster in past 5 years

›Tetanus immunoglobulin if immunization history unknown or incomplete

›Antibiotic policy

›Not routinely indicated prophylactically

›Initiate when signs of wound infection present

›Cellulitis: cephalexin or cefazolin

›Deep necrotic wounds: antianaerobic coverage added

›Avoid succinylcholine in subacute phase

›Hyperkalemia risk from rhabdomyolysis

›Rocuronium preferred for intubation after initial resuscitation

09Special Populations/sp73

Pregnancy

›Maternal and fetal risk in electrical injury

›Fetal mortality risk

›Current traversal through amniotic fluid increases fetal death risk

›Amniotic fluid is excellent conductor

›Fetal demise can occur without visible maternal injury

›Placental abruption risk

›Placenta has low resistance to current

›Even low-voltage injuries can cause abruption

›Monitoring requirements

›Continuous fetal heart rate monitoring

›Minimum 4 hours after exposure in viable gestation

›Extended if any abnormality detected

›Obstetric consultation mandatory for all pregnant patients

›Regardless of perceived voltage or injury severity

›Uterine activity monitoring

›Preterm labor risk

›Tocometry in viable gestation

›Medication considerations in pregnancy

›Fluid resuscitation same principles apply

›Avoid mannitol (osmotic load concern)

›Antiarrhythmic selection with obstetric consultation

›Maintain SpO2 >= 95% for fetal oxygenation

›Imaging in pregnancy

›CT with fetal radiation dose consideration

›Use when maternal benefit outweighs risk

›MRI without gadolinium preferred for neurological evaluation

10Background/b73

Epidemiology

›Incidence and burden

›Approximately 1,000 electrical fatalities per year in the United States

›Electrical burns account for 4% of burn center admissions

›Occupational injuries account for majority of adult cases

›Demographics

›Male sex 85-98% of cases

›Peak incidence in working-age adults 20-40 years

›Summer months predominate

›Occupational distribution

›Electricians, linemen, and construction workers highest risk

›Workplace exposure accounts for majority of high-voltage cases

›Mortality and morbidity

›Overall mortality 3-15% depending on voltage and injury severity

›High-voltage injuries carry higher fatality rate

›Cardiac arrest at scene is most common cause of death

›Long-term morbidity significant

›Neuropsychological sequelae in majority of survivors

›Chronic pain, PTSD, cognitive impairment

›Amputation rates highest of all burn etiologies

Pathophysiology

›Tissue injury mechanisms

›Joule heating (resistive heating)

›R = V/I; high resistance tissues generate more heat

›Bone has highest resistance; generates most heat

›Nerves and blood vessels have lowest resistance; conduct current

›Tissue resistance hierarchy

›Bone > fat > tendon > skin > muscle > blood/nerve

›Current follows path of least resistance (vessels and nerves)

›Internal injury disproportionate to skin appearance

›Electroporation

›Cell membrane disruption from electrical field

›Independent of thermal injury

›Contributes to late tissue necrosis

›Cardiac injury mechanism

›Direct myocardial injury

›Arrhythmia from current disrupting cardiac conduction

›VF threshold lowered during vulnerable period (T wave)

›Autonomic disruption

›Catecholamine surge causing coronary spasm

›ST changes without atherosclerotic cause

›Rhabdomyolysis mechanism

›Massive muscle necrosis from direct thermal and electroporation injury

›Myoglobin released into circulation

›Tubular toxicity at acid pH

›Vasoconstriction from myoglobin

›Direct heme-induced oxidative injury

›Neurological injury

›Immediate: direct current injury to neural tissue

›Delayed: vascular thrombosis, demyelination

›Spinal cord: ascending paralysis syndrome described

Therapeutic Considerations

›Evidence base for fluid targets

›Standard burn Parkland formula underestimates needs in electrical injury

›Deep muscle necrosis creates large third-space

›Urine output of 1 mL/kg/h target specific to electrical burns

›No randomized trials for alkalinizing therapy

›Observational data and physiological rationale only

›Sodium bicarbonate considered reasonable in severe rhabdomyolysis

›Cardiac monitoring duration controversy

›Algorithmic approach reduces unnecessary prolonged monitoring

›Low-voltage, no LOC, normal ECG, normal troponin: 4-6 hour observation acceptable

›High-voltage or abnormal features: minimum 24 hours

›Delayed arrhythmias rare after first 24 hours if initially normal

›Fasciotomy thresholds

›Compartment pressure > 30 mmHg universally accepted threshold

›Clinical diagnosis alone sufficient when exam is unequivocal

›Early fasciotomy improves limb salvage rates

›Wound management strategy

›Serial debridement allows demarcation of viable tissue

›Premature closure over devitalized tissue causes failure

›Split-thickness skin grafting after viable wound bed achieved

›Psychological intervention

›Early psychological support reduces PTSD incidence

›Multidisciplinary burn rehabilitation essential

›Pre-existing psychiatric history predicts worse adjustment

11Patient Discharge Instructions/pdi34

copy discharge instructions

›Home wound care

›Keep burn wounds clean and covered with prescribed dressings

›Change dressings as instructed (typically once or twice daily)

›Do not pop blisters; cover with clean dressing

›Elevate burned extremities above heart level to reduce swelling

›Activity restrictions

›No return to electrical work until medically cleared

›Avoid heavy lifting with injured extremities

›No driving until neurological symptoms resolved

›Medications

›Take prescribed pain medications as directed

›Continue antibiotics if prescribed until finished

›Do not take NSAIDs without physician approval if kidney injury occurred

›Warning signs to return to ER immediately

›Heart pounding, skipping beats, or irregular rhythm

›Fainting or near-fainting

›Chest pain or pressure

›Increasing pain, swelling, or numbness in an arm or leg

›Dark, tea-colored, or cola-colored urine

›Decreased urination

›Wound that becomes increasingly red, swollen, warm, or has discharge

›Oral bleeding from lip or mouth area (especially in children with mouth burns)

›Confusion, seizure, or new weakness

›Difficulty breathing

›Follow-up appointments

›Burn clinic or surgeon within 48-72 hours for wound check

›Eye examination at 4-6 weeks to screen for cataracts

12References/r17

Guidelines and key sources

›Burn center referral guidelines

›American Burn Association: all electrical burns meet criteria for burn center referral

›ABA Advanced Burn Life Support guidelines

›Emergency medicine references

›ACEP Clinical Policy: electrical injuries management

›Tintinalli's Emergency Medicine guidelines on electrical burn injury

›Key studies

›High-voltage (>= 1000 V) as strongest predictor of arrhythmia (AUC 0.804) from prospective electrical injury studies

›Combined CK, troponin, and lactate model for arrhythmia prediction in electrical burns

›LOC present in 69% of high-voltage injuries: multicenter burn registry analysis

›Algorithmic approach to lab testing reduces unnecessary workup without increasing mortality or readmission

›Coding standards

›ICD-10 T75.4 electric shock

›ICD-10 M62.82 rhabdomyolysis

›ICD-10 M79.A3 traumatic compartment syndrome

›ICD-10 T23-T28 burn and corrosion codes by body region

›SNOMED CT electrical burn injury concept

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

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