Intraoperative Support and Surgical Team Assistance
This domain tests the scrub person's hands-on role: setup, draping, anticipation, instrument selection, passing technique, and field maintenance. Questions often name an instrument, a task, or a surgeon request and ask for the correct tool or the safe action. Knowing instrument categories cold is the fastest way to pick up marks.
Setup and field discipline
The scrub person performs the initial count with the circulator, arranges the back table and Mayo stand in a consistent layout, assists with draping, and keeps the field dry and organized. Sponges stay accounted for at all times; a lap sponge is never left loose on the field. Medications and solutions on the field are dispensed into labeled containers - an unlabeled cup is a reportable hazard, not a minor slip.
Instrument categories
Cutting and dissecting: scalpel blades (#10 for skin, #11 for puncture, #15 for fine work), Metzenbaum scissors for delicate tissue, Mayo scissors for heavy fascia and suture. Clamping and occluding: hemostats such as Kelly, Crile, and mosquito, plus vascular clamps. Grasping and holding: toothed forceps for skin, smooth forceps for delicate tissue. Retracting: Weitlaner, Balfour, Senn, Richardson. Suturing: needle holder and suture scissors.
Passing and anticipation
Pass with the handle toward the surgeon, loaded needle holders with the needle pointing away, and say the name of what you are handing off. Anticipate the next step - have suction ready, sponges counted, and suture cut to length. Suction tips and light handles are secured so they do not slide onto the field.
Electrosurgery and energy devices
Confirm the dispersive pad is well adhered over a well-perfused, nonbony site, keep the active electrode in a holster when idle, and keep the tip away from pooled prep solution.
Worked example
Mid-case the surgeon says, 'Give me something to cut these fine adhesions.' Metzenbaum scissors are correct: long shanks with short, delicate blades give control in deep, fine tissue. Mayo scissors would crush and tear delicate adhesions, and a #10 blade is for skin incision, not dissection in a cavity.
Traps that cost marks
Handing a scalpel blade bare instead of on a handle; leaving the active electrode on the drape; choosing heavy instruments for delicate tissue; letting a sponge leave the field uncounted or an unlabeled cup sit on the stand.