Using monopolar cautery is not advised when a child is undergoing circumcision as it may lead to coagulation of penis. The mechanism is
Correct Answer: Channeling
Description: Channelling: Heat is produced wherever the current intensity is greatest. Normally, this would be at the tip of the active electrode, but if current passes up a narrow channel or pedicle to the active electrode, enough heat may be generated within this channel or pedicle to coagulate the tissues. This can prove disastrous, for example:coagulation of the penis in a child undergoing circumcision;coagulation of the spermatic cord when the electrode is applied to the testis.Capacitance coupling: This is a phenomenon in which a capacitor is created by having an insulator sandwiched between two metal electrodes. This can be created in situations where there is a metal laparoscopic po and the diathermy hook is passed through it.Ref: Bailey and Love 27e pg: 103
Category:
Surgery
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now