What is hemostasis and name two methods used intraoperatively to achieve it.

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Hemostasis is the stopping of bleeding to keep blood loss under control during surgery, allowing the surgeon to work safely and the patient to remain stable. Intraoperatively, you achieve this through several complementary approaches. One common method is using energy to coagulate vessels, such as electrocautery (including bipolar devices) to seal small bleeding channels. Another essential approach is mechanical control: applying pressure, tying off or ligating vessels with sutures, clips, or hemostats to physically stop flow. Topical hemostatic agents can also be applied to promote clot formation or provide a matrix for clots to form, helping to control oozing from surfaces.

Thus, stopping blood loss with techniques like electrocautery and mechanical ligation (plus the optional use of topical agents) is how hemostasis is achieved during surgery. The other options focus on wound cleaning, infection prevention, or respiratory management, which do not address stopping the bleeding itself.