Pathophysiologic effects of different intensities of electrical current

Current intensity	Effect
1 mA	Tingling sensation; almost not perceptible
3-5 mA	"Let-go" current for an average child
6-9 mA	"Let-go" current for an average adult
16 mA	Maximum current a person can grasp and "let go"
16-20 mA	Tetany of skeletal muscles
20-50 mA	Paralysis of respiratory muscles; respiratory arrest
50-100 mA	Threshold for ventricular fibrillation
>2 A	Asystole
15-30 A	Common household circuit breakers
240 A	Maximal intensity of household current (U.S.)

Effect_of_electrical_curren.htm

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