Which of the Following Best Describes the Evidence-Supported Level of Stimulation

Multiple Choice

Which of the following best describes the evidence-supported level of stimulation amplitude, or intensity, to be used when administering TENS?

A) The amplitude should be just above the sensory threshold.
B) Current amplitude should never rise beyond the motor threshold.
C) Current amplitude should be increased to noxious levels for best effectiveness.
D) Current amplitude should be as strong as is tolerated while still comfortable.