Trystan Casey
Electric shock happens when an electrical current passes from a live source and travels through your body. The human body is a good conductor of electricity, so even a minimum voltage of 50 volts can be lethal. Electric shock injuries can range from mild to severe and can sometimes be fatal. If a current passes through the heart, it can disturb the heart's rhythm, causing arrhythmia or irregular heartbeat. In some cases, this can lead to ventricular fibrillation, where the heart stops pumping and the blood stops circulating, resulting in cardiac arrest and death if not treated immediately.
| Characteristics | Values |
|---|---|
| Loss of muscle control | Can cause a person to be unable to release themselves from the electrical source |
| Tissue damage | Larger currents can cause tissue damage |
| Cardiac arrest | Can trigger cardiac arrest |
| Ventricular fibrillation | Can cause ventricular fibrillation |
| Irregular heartbeat | Can cause arrhythmia or irregular heartbeat |
| Death | Can cause death, known as electrocution |
| Neuropathy | Electric shock can cause neuropathy at the site where the current entered the body |
| Loss of consciousness | Can cause loss of consciousness |
| Cerebral hypoxia | Can cause cerebral hypoxia |
| Burns | Can cause electrical burns |
| Vascular compromise | Can damage blood vessels, arteries and veins |
| Lethal dysrhythmias | Can cause lethal dysrhythmias |
| Infection | Most common cause of death in people hospitalized after an electric shock injury |
| Respiratory arrest | Can cause respiratory arrest |
| Amnesia | Can cause amnesia |
| Seizure | Can cause seizure |
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What You'll Learn
- Electric shocks can cause arrhythmia or irregular heartbeats
- Electric shocks can lead to ventricular fibrillation, which is often lethal
- Cardiac arrest can occur due to electric shocks
- Electric shocks can cause internal damage to organs and tissues
- Electric shocks can result in cardiac defibrillation, which can be deadly
Electric shocks can cause arrhythmia or irregular heartbeats
Electric shocks occur when an electrical current passes from a live source and travels through your body. The human body is a good conductor of electricity, and the force it takes to move an electrical current through body tissue is minimal. This means that even a minimum voltage of 50 volts is enough to be lethal.
Low-voltage shocks can also cause arrhythmia. While electrical burn injuries may not be significant from a low-voltage shock, these shocks can cause arrhythmia or abnormal heart rhythm. The danger of low-voltage shocks is that they can lead to more severe complications and death due to cardiac defibrillation.
The mechanism of cardiac arrhythmias induced by electricity is not fully understood. However, various biopsies have shown arrhythmogenic foci in patchy myocardial fibrosis, which contained an increased amount of Na+ and K+ pumps, possibly associated with transient and localized changes in sodium-potassium transport and their concentrations, resulting in changes in membrane potential.
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Electric shocks can lead to ventricular fibrillation, which is often lethal
Electric shocks can have a range of consequences, from mild to severe, and some can be fatal. The human body is a good conductor of electricity, meaning a minimal voltage of 50 volts is enough to be lethal.
Electric shocks can cause interference with nervous control, especially over the heart and lungs. If a current from outside the body passes through the heart, it can disturb the heart's rhythm, causing an irregular heartbeat, known as arrhythmia. This can even manifest as a total disorganization of the rhythm, known as ventricular fibrillation.
Ventricular fibrillation is when all of the heart muscle fibres move independently instead of in the coordinated action needed to pump blood and maintain circulation. When ventricular fibrillation occurs, the heart stops pumping, and blood circulation is cut off. The victim will rapidly lose consciousness and die if a healthy heartbeat is not restored with a defibrillator. Therefore, ventricular fibrillation is usually lethal and requires immediate medical attention.
The danger of low-voltage shocks is that they can often lead to more severe complications and death due to cardiac defibrillation. Defibrillation stops the heart and acts as a restart, sometimes throwing the heart into and out of its natural rhythm. Thus, ventricular fibrillation is often lethal and requires immediate emergency medical intervention.
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Cardiac arrest can occur due to electric shocks
Electric shock occurs when an electric current passes from a live source and travels through your body. Electric shocks can cause cardiac arrest and even death, with the latter being referred to as electrocution. The severity of electric shock injuries can vary, ranging from mild to severe, and some can be fatal. Voltage levels of 500 to 1000 volts tend to cause internal burns due to the large energy available from the source. The human body is a good conductor of electricity, hence a minimum voltage of 50 volts is enough to be lethal.
Electric shocks can cause interference with nervous control, especially over the heart and lungs. If a current from outside the body passes through the heart, it can mask the natural electrical impulses and disturb the heart's rhythm. This irregular heartbeat is called arrhythmia and can even manifest as a total disorganization of the rhythm, known as ventricular fibrillation. When ventricular fibrillation occurs, the heart stops pumping and the blood stops circulating, leading to cardiac arrest.
Ventricular fibrillation is usually lethal if not immediately treated by defibrillation, as all of the heart muscle fibres move independently instead of in the coordinated action needed to pump blood and maintain circulation. The amount of current can easily reach very high values, especially in the case of ultra-short contact times with direct currents. A current of 50 mA passing through the heart can cause cardiac arrest.
Low-voltage shocks can also cause deadly cardiac defibrillation or heart arrhythmias. Most electrical injuries in adults occur in the workplace, with occupations such as power line workers being at high risk of electrocution.
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Electric shocks can cause internal damage to organs and tissues
Electric shocks can cause electrical burns, which often affect internal organs. These burns are caused by the heat generated from the body's resistance to the current passing through it. The danger of low-voltage shocks is that they can lead to more severe complications and death due to cardiac defibrillation. Defibrillation stops the heart and acts as a restart, sometimes throwing the heart into and out of its natural rhythm.
Electric shocks can also cause ventricular fibrillation, which is usually lethal. This occurs when all of the heart muscle fibres move independently instead of in the coordinated action needed to pump blood and maintain circulation. If ventricular fibrillation occurs, the blood supply to the brain is diminished, which may cause cerebral hypoxia.
Electric shocks can cause interference with nervous control, especially over the heart and lungs. Neurologic symptoms of electrical injury may occur immediately, or they may be delayed by days to years. The delayed neurologic consequences of electrical injury have a worse prognosis.
Electric shocks can also cause tissue damage, especially if the current is high. Tissue can be burned if the shock is lasting, and muscles, ligaments, and tendons may tear as a result of the sudden contraction caused by an electric shock.
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Electric shocks can result in cardiac defibrillation, which can be deadly
Electric shocks occur when an electrical current passes from a live source and travels through your body. The human body is a good conductor of electricity, meaning that even a minimum voltage of 50 volts can be lethal.
Electric shocks can cause ventricular fibrillation, which is when all of the heart muscle fibres move independently instead of in the coordinated action needed to pump blood and maintain circulation. This fibrillation can lead to cardiac arrest, which is often lethal. If ventricular fibrillation occurs, the use of a defibrillator is necessary to restore a healthy heartbeat.
Electric shocks can also cause arrhythmia, an irregular heartbeat. This can manifest as a total disorganization of the rhythm, known as ventricular fibrillation. Arrhythmia can also be caused by changes in sodium-potassium transport and their concentrations, resulting in changes in membrane potential.
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Frequently asked questions
Electricity touching the heart can cause ventricular fibrillation, where all of the heart muscle fibres move independently instead of in the coordinated action needed to pump blood and maintain circulation. This is usually lethal if not treated with a defibrillator.
Ventricular fibrillation is a disorganisation of the heart's rhythm, which can be caused by an electric shock to the heart.
An electric shock is when an electrical current passes from a live source and travels through your body.
Symptoms of an electric shock include external and internal burns, irregular heartbeat (arrhythmia), cardiac arrest, and respiratory arrest.
If someone is experiencing an electric shock, you should immediately turn off the power source or remove the source from the person. Do not touch the person or the power source with your bare hands. Once the person is no longer in contact with the electrical source, call for emergency medical help.
