8.2 Correct Application of Instrument Marking Tape

Why Application Technique Is a Named Exam Topic

Instrument marking tape is not adhesive labelling; it is a processed material that lives on a surgical instrument for months, through hundreds of cleaning and sterilization cycles. Applied correctly, it is a durable, harmless identifier. Applied badly, it becomes exactly what the department is trying to eliminate: a crevice, a moisture trap, and a sterilant barrier attached to a device that goes into a patient's wound.

That is why CBSPD lists correct application of tape as its own sub-topic.

---

The Procedure

1. Confirm the instrument is clean and has passed inspection. Tape goes on after inspection, not before — you cannot inspect the surface under the tape.
2. Confirm the instrument is completely dry. Moisture trapped under tape has nowhere to go and produces corrosion in a place nobody can see.
3. Remove all old tape and any adhesive residue. Never apply new tape over old.
4. Select the correct product — an autoclavable instrument marking tape validated for the sterilization method in use — and the correct colour per the facility's documented scheme.
5. Choose a permitted location: a flat area of the shank between the box lock and the finger rings, or the finger rings themselves.
6. Cut a length that will overlap itself completely. A wrap that ends short leaves an exposed edge of instrument under the wrap; a wrap that is excessively long builds unnecessary thickness.
7. Wrap snugly and smoothly, keeping the tape flat, with no wrinkles, bubbles, or trapped air.
8. Finish with the end sealed down over the tape beneath it, in the direction that will not be peeled back by handling.
9. Press the whole wrap down firmly so there is no loose edge and no lifting.
10. Verify placement: the tape must not touch a working surface, must not obstruct the ratchet, must not interfere with full closure, and must not cover an insulated section.
11. Record the marking if the facility tracks it.

---

The Errors and What They Cause

Autoclave indicator tape is not instrument marking tape. It is designed to be applied to a package once and removed; using it on an instrument is a common and incorrect improvisation.

---

Placement Reminders

• Never on jaws, tips, serrations, cutting edges, box locks, ratchet teeth, lumen openings, or insulated shafts.
• Never in a way that prevents the instrument from closing fully or opening fully.
• Never on an area the manufacturer's instructions for use exclude.
• Consistently in the same position on like instruments, so a set can be read at a glance.

---

Tape and the Cleaning Process

Tape changes the cleaning problem slightly, and the specialist should expect it:

• The edges of the wrap are the first place soil accumulates. Inspect them under magnification at every assembly.
• Aggressive chemistry and high-alkaline detergents accelerate tape degradation; if tape is failing across the department, chemistry is a likely cause.
• Tape that has begun to discolour, harden, split, curl, or lift has reached the end of its life and must be removed and replaced, not patched.

---

A Note on Dipped Handles

Dipped or moulded polymer handle coatings are the manufacturer's or a vendor's alternative to tape, and they avoid most application problems because they are bonded rather than wrapped. Their failure mode is different: the coating cracks, chips, or separates from the metal at the edge, and once separated it creates the same crevice a lifting tape does. A dipped handle that has begun to lift is a vendor re-dip or replacement decision, and instruments with chipped coatings are removed from service until resolved.

Working Through the Application Step by Step

Because this is a named blueprint sub-topic, expect an item that tests the procedure in detail rather than the principle. Rehearse the sequence and the reason attached to each step.

Begin with an instrument that is clean, completely dry, and at room temperature. Tape will not bond through moisture or residual detergent, and a warm instrument causes the adhesive to set before it is positioned.

Select the correct location: a flat, non-functional area on the shank or ring, well clear of the box lock, jaws, serrations, cutting edges, and any insulated surface.

Wrap the tape around the instrument, keeping it flat and taut, and overlap the end onto itself by a defined amount — commonly one and a half to two full turns. The overlap must sit on tape, not on bare metal, so the seam is sealed against moisture ingress.

Do not stretch the tape as you wrap. Stretched tape retracts after sterilization and lifts at the edges.

Press the whole wrap down firmly, then autoclave the instrument before placing it into service. That first steam cycle cures the adhesive and is the step most often skipped; tape put straight into a set without curing lifts on the first cycle.

Errors and the Failure Each One Produces

Each mistake has a specific and predictable consequence, and questions often present the consequence and ask for the cause.

Too few turns or no overlap leaves an unsealed edge where water and soil enter, producing lifting and a corrosion focus under the tape.

Too many turns creates a bulky band that adds thickness where the instrument must fit a stringer or a bracket, and thick tape is harder for steam to penetrate to the metal beneath.

Tape applied over a box lock or jaw interferes with function and is abraded off within a few cycles.

Tape applied to a wet or dirty instrument fails to bond and traps contamination beneath itself, which is the worst outcome because the soil is now sealed away from cleaning and inspection.

Tape applied over existing tape hides the condition of the layer beneath. Old tape is always removed completely, and any adhesive residue is cleaned off, before a new band is applied.

Removal and the Inspection That Follows

Removal is part of the technique. Peel the tape off completely, remove residual adhesive with an approved cleaner, then inspect the metal that was under the tape before re-taping. That surface has been covered and unmonitored, and it is a common site for pitting and staining that has been developing unseen. Finding it is one of the genuine benefits of a scheduled tape-replacement programme.