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Railways PYQCBT 1 2016

RRB NTPC · Question 26

Bloodless surgery is done with ________.

  1. Lasers

  2. Microneedles

  3. Scalpels

  4. Fine scissors

Show answer & explanation

Answer: (A) Lasers

Explanation

Laser surgery is called bloodless surgery because the laser beam cuts tissue and at the same time seals (cauterises) small blood vessels, so there is very little bleeding.