What is the characteristic of PC current?

The characteristic of PC current being monophase or biphasic and interrupted at regular intervals is correct because it describes the nature of pulsatile currents used in various therapeutic applications. PC, or pulsed current, is known for delivering current in discrete pulses rather than a continuous stream, allowing for better control over the effects of electrical stimulation on tissues. This interruption of current is essential in clinical settings, as it can prevent tissue fatigue and enhance patient comfort while still providing effective stimulation for muscle contraction or pain relief.

Understanding that PC current can be either monophase, where the pulses only flow in one direction, or biphasic, where pulses alternate directions, is crucial for practitioners when selecting the appropriate stimulation method based on the desired therapeutic outcome. The regular intervals of interruption also play a vital role in the physiological response elicited by the current, making this characteristic central to its effective application in treatments.