Which is an advantage of using the argon beam coagulator?
a. Increased air embolism
b. Beam weight lighter than air
c. Patent return electrode not required
d. The argon beam spares surrounding tissue
ANS: D
Argon lasers coagulate bleeding points or lesions. They destroy specific lesions and spare the surrounding tissue. Argon is heavier than air and creates less plume. Care is taken to avoid gas entering large open vessels because of the risk of gas embolism. Argon-enhanced electrosurgery is a form of monopolar ESU and requires the use of a patient return electrode.
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