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ENT · Pharynx and tonsils: coblation tonsillectomy
Sample itemWhich technique of tonsillectomy uses radiofrequency energy in a saline field to dissolve tissue at a lower temperature, resulting in less postoperative pain?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
A. Coblation tonsillectomy
Coblation uses bipolar radiofrequency and saline to create a plasma field that ablates tissue at about 60 degrees C. This causes less collateral thermal injury than diathermy, with possible reduction in pain. Postoperative haemorrhage remains a risk with every technique.
Option by option
A. Coblation tonsillectomy (correct)
Correct. Radiofrequency plasma in saline.
B. Guillotine tonsillectomy
Guillotine uses a mechanical snare.
C. Cold steel dissection
Cold steel uses blades and ties.
D. Monopolar diathermy dissection
Monopolar diathermy heats tissue to high temperatures.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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