In RF ablation, power control mode delivers RF energy (W) to achieve a set temperature (°C).

• A. True
• B. False
• C. Not specified
• D. N/A

Answer: (B)

The important idea is how RF energy delivery is regulated. In RF ablation, there are two main control modes: power control, where a fixed amount of energy is delivered in watts, and temperature control, where a sensor monitors tissue temperature and the system adjusts energy to hold a set temperature. The statement is false because power control does not aim for a target temperature; the tissue temperature that results depends on tissue properties, contact, impedance, and blood flow. Temperature-control mode uses feedback from a thermometer to maintain the chosen temperature, which tends to produce more consistent lesion size and reduces risks like charring. So delivering energy to reach a specific temperature is characteristic of temperature-control mode, not power-control mode.