Final answer:
One side of the bipolar forceps returns the current to the generator in bipolar electrical current delivery, with no dispersive pad needed as in monopolar delivery. High-frequency AC is typically used in such surgeries to minimize complications, and safety precautions regarding water and electricity are vital to prevent electric shock.
Step-by-step explanation:
When using bipolar delivery of electrical current in medical procedures, it's important to understand that unlike monopolar delivery, there is no need for a dispersive pad to return the current to the generator. Instead, both tips of the bipolar instrument (typically forceps) are used to complete the circuit. That means that option C is correct: 'One side of the bipolar forceps returns the current to the generator.' In bipolar electrosurgery, the electrical current passes from one tip of the forceps to the other, through the tissue that is being coagulated or cut. This contains the current to the site of surgery, minimizing the risk of electrical injury to other parts of the body.
In the context of surgery using high-voltage electricity, most of the current will flow from the sharp edge of a scalpel due to the concentration of the electric field around sharp points, which can cause a higher current density and create a cutting or coagulating effect. Typically, high-frequency alternating current (AC) is used because it reduces the possibility of muscle stimulation and other potential complications.
Considering safety with electrical devices, large surface areas such as a butt plate for wart removal are used to disperse the electrical current, minimizing the chances of burns or other injuries. Hairdryers and other electrical devices should not be used near water to avoid the risk of electric shock, and water should not be used on electrical fires due to the conductive nature of water which could spread the electricity.