What risk is associated with the active blade when it is unprotected?

What risk is associated with the active blade when it is unprotected?

• A. It cannot injure tissue due to insulation
• B. It cools tissue rapidly
• C. It will retract automatically
• D. It can damage tissue during or after use

Answer: (D)

When the active blade is unprotected, it can transfer energy directly to tissue and cause damage. The blade is sharp and energised to cut or coagulate, so lacking protection means anything it touches can be injured. This risk can persist even after use, because residual heat or energy in the blade can continue to harm tissue. Protective insulation or guarding is what prevents this kind of inadvertent injury. The other ideas—that insulation would prevent injury, that the blade would retract automatically, or that it would cool tissue rapidly—don’t reflect the risk of an exposed, energized blade.

When the active blade is unprotected, it can transfer energy directly to tissue and cause damage. The blade is sharp and energised to cut or coagulate, so lacking protection means anything it touches can be injured. This risk can persist even after use, because residual heat or energy in the blade can continue to harm tissue. Protective insulation or guarding is what prevents this kind of inadvertent injury. The other ideas—that insulation would prevent injury, that the blade would retract automatically, or that it would cool tissue rapidly—don’t reflect the risk of an exposed, energized blade.