ANTT: OSCE Station Checklist

ANTT isn’t really one station; it’s the grammar of half the exam. The wound dressing, the IV flush, the catheter procedures and the injections all carry ANTT marks inside them. When ANTT appears as its own station, it’s usually wrapped around a dressing change or IV access task, and the examiner is listening for the vocabulary as much as watching the hands.

The two terms to use out loud:

• Key sites: the patient’s vulnerable points; wounds, device insertion sites, any breach in the skin’s defence.
• Key parts: the equipment surfaces that must stay sterile because they will touch a key site or the fluid heading into one; syringe tips, needle hubs, the wound-facing side of a dressing, the sampling port you’ve just cleaned.

The whole method is one sentence: key parts touch only other key parts or key sites, and nothing else, ever. Everything in the procedure serves that sentence: the cleaned and dried trolley, the general aseptic field of the opened pack, caps left on until the last moment, and hands that never cross from dirty to sterile.

Standard or surgical

Standard ANTT covers short, technically simple procedures with few and small key parts: flushes, injections, straightforward dressings. Non-sterile gloves are fine, because the technique protects each key part individually and gloves never touch them anyway.

Surgical ANTT is for procedures where key parts are large, many, or in play for a long time: urinary catheterisation, central line work. Sterile gloves, a full sterile field, and often two people.

The station may simply ask which applies to the task in front of you and why. The reasoning (“multiple large key parts, so surgical ANTT”) is the mark; the label alone is half of it.

The engineered slip

Somewhere in many ANTT stations, contamination happens or is described: the syringe tip grazes a sheet, the glove touches a bed rail before the dressing. The recovery is what’s marked. Stop, name it (“that key part is contaminated”), replace the item or re-glove, continue. Candidates fail this moment two ways: not noticing, or noticing and hoping the examiner didn’t. The examiner did. The honest reset is a mark in your favour; it demonstrates exactly the habit the technique exists to build.

Hand hygiene brackets everything: before the task, before gloves, after gloves. Waste and sharps close it out, and the documentation line records the procedure and the condition of the key site.

Five questions below. That completes the first ten stations; chapters 11 to 20, from catheter specimens to MSSU collection, follow in the course order shown on the course hub.