What are the known causes of cardiac arrest?

Heart disease leads to sudden cardiac arrest. Other known factors are drowning, suffocation, electrocution and respiratory arrest.

To be brief, this will help you out:

In adults, sudden cardiac arrest results primarily from cardiac disease (of all types, but especially coronary artery disease). In a significant percentage, sudden cardiac arrest is the first manifestation of heart disease. Other causes include circulatory shock from noncardiac disorders (especially pulmonary embolism, GI hemorrhage, trauma), ventilatory failure, and metabolic disturbance (including drug overdose).

In children, cardiac causes of sudden cardiac arrest are much less common (< 15 to 20%). Instead, predominant causes include trauma, poisoning, and various respiratory disorders (eg, airway obstruction, smoke inhalation, drowning, infection, sudden infant death syndrome).

look it up dumbas webmd.com, fool.

Ventricular tachycardia, Disturbance in hearat rhythm. Many things can cause this like being struck by lightning, heart attack, medications, pacemaker problem, low oxygen,

shock- due to trauma or anaphylaxis, drug overdose, congestive heart failure, a high potassium level- can be caused by trauma to cells, varoius drugs and conditions, infections of the heart such as endocarditis, blood clots which break off and occlude the coronary arteries, coronary artery disease, certain abnormal heart rythyms like vtach,etc...

Well I suppose the most well known one is a heart attack - the death of the heart muscle due to the arteries getting blocked.

Electrocution sure, but the less well known variants are genetic peculiarities in the electrical conduction of the muscle leading to spasms and then death.

Lastly, my favorite oft overlooked killer of hearts - sodium and potassium levels out of whack in the blood. Too much sodium and the heart muscle gets tired trying to contract too much. Too much potassium and the heart muscle may get itself ionically stuck unable to contract. Both can quickly lead to death.

I suspect blood salt levels have much more to do with death in "old age" than old age itself.

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