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Related Concept Videos

Household Wiring And Electrical Safety01:13

Household Wiring And Electrical Safety

Companies that supply power to most modern households use three conductors, typically called a three-wire line. While one is neutral, the other two are both at 120 V but with opposite polarity, giving a voltage of 240 V between them. With a three-wire line, high-power appliances that require 240 V, such as electric stoves and clothes dryers, are linked between the two hot lines. 120 V appliances can be connected between the neutral and either of the hot lines. The neutral side, which is always...
Burn Injuries01:22

Burn Injuries

Burn injuries occur when the skin and underlying tissues are damaged due to exposure to heat, electricity, chemicals, radiation, or friction. They can vary in severity, from minor superficial burns to severe deep burns that can be life-threatening.
The damage results in the death of skin cells, which can lead to a massive loss of fluid. Dehydration, electrolyte imbalance, and renal and circulatory failure follow, which can be fatal. Burn patients are treated with intravenous fluids to offset...
Electrical Systems01:21

Electrical Systems

In electrical engineering, the analysis of networks composed of passive linear components — resistors (R), capacitors (C), and inductors (L) — is fundamental. These components are organized into circuits where the relationship between input and output can be analyzed using transfer functions. The transfer function of an RLC circuit, which relates the voltage across a capacitor to the input voltage, can be derived using Kirchhoff's laws.
To derive the transfer function, consider an RLC circuit...
Spinal Cord Injury ll: Pathophysiology01:14

Spinal Cord Injury ll: Pathophysiology

Spinal cord injury progresses through two interconnected phases: primary injury and secondary injury.Primary InjuryPrimary injury happens at the moment of trauma and involves immediate mechanical damage to the spinal cord.Compression happens when broken vertebrae, herniated discs, or accumulating blood (such as a hematoma) press directly against the spinal cord, distorting its normal shape and function. In cases of contusion, the cord is bruised by a blunt force (like penetrating injuries or...
Electrical Power01:07

Electrical Power

Electric power is the product of current and voltage, represented in units of joules per second, or watts. For example, cars often have one or more auxiliary power outlets with which you can charge a cell phone or other electronic devices. These outlets may be rated at 20 amps and 12 volts, so that the circuit can deliver a maximum power of 240 watts. Consider a 25 Watt bulb and a 60 Watt bulb. The conversion of electrical energy produces heat and light, while the kinetic energy lost by the...
Insulation Coordination01:23

Insulation Coordination

Insulation coordination is the process of matching electric equipment's insulation strength with protective device characteristics to protect the equipment against expected overvoltages. This selection is based on engineering judgment and cost. Equipment can generally withstand short-duration high transient overvoltages, but repeated tests with identical waveforms can yield inconsistent results. As a result, standard impulse voltage waveforms are used for testing, defined by specific times for...

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Paradigms of Lower Extremity Electrical Stimulation Training After Spinal Cord Injury
08:07

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Published on: February 1, 2018

[Electrical injuries].

O Grosgurin1, C Marti, M Niquille

  • 1Service de médecine interne générale, Département de médecine interne, HUG, 1211 Geneve 14. olivier.grosgurin@hcuge.ch

Revue Medicale Suisse
|September 20, 2011
PubMed
Summary
This summary is machine-generated.

Electrical injuries require thorough evaluation and complex emergency treatment. High-risk cases, including high-voltage incidents, necessitate at least 24-hour cardiac monitoring.

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Area of Science:

  • Emergency Medicine
  • Trauma Surgery
  • Cardiology

Context:

  • Electrical injuries present complex multisystemic challenges.
  • Emergency department management integrates Advanced Cardiac Life Support and Advanced Trauma Life Support protocols.
  • Fluid resuscitation and musculoskeletal damage require specific attention.

Purpose:

  • To outline the critical evaluation and management of electrical injuries in the emergency department.
  • To define criteria for intensive care unit admission and cardiac monitoring.
  • To emphasize the need for specialized care for severely burned patients.

Summary:

  • All electrical injuries warrant evaluation, irrespective of skin damage severity.
  • Criteria for 24-hour cardiac monitoring include documented arrhythmia, abnormal ECG, loss of consciousness, and high-voltage exposure (>1000 V).
  • Patients with severe burns require prompt transfer to specialized burn centers.

Impact:

  • Improved patient outcomes through standardized emergency protocols.
  • Reduced morbidity and mortality from electrical injuries.
  • Enhanced resource allocation for critical care of electrical injury patients.