What Circulating and Support Staff Wear in Theatre: Non-Sterile Gowns and Layers

Circulating nurses, anaesthetic staff, technicians, porters and other support staff in theatre do not wear sterile surgeon gowns, because they do not work in the sterile field. They usually wear theatre scrubs, and depending on your theatre attire policy may add a non-sterile cover layer for warmth, for specific tasks, or when leaving the department. What they wear, and what you buy for them, should follow a written policy agreed with your infection-control team rather than habit.

Sterile and non-sterile roles in theatre

The theatre team splits broadly into two groups.

• Scrubbed staff: the surgeon, assistants and scrub nurse who work in the sterile field. They wear sterile gowns and gloves over their scrubs. Sterile gowns are processed and packed through CSSD.
• Non-scrubbed staff: circulating nurses, anaesthetists and anaesthetic assistants, operating department practitioners, radiographers, perfusionists, technicians, porters and cleaning staff. They move around the room and the department, fetch equipment, handle documentation and support the patient.

Non-scrubbed staff must not touch the sterile field, so a sterile gown would be wasted on them. But they still need clothing that suits a theatre environment and follows department rules. For a fuller look at the roles of gowns and scrubs, see surgical gown vs scrubs.

What non-sterile staff typically wear

Garment	Typical use	Notes
Theatre scrubs	Base layer for everyone in the restricted area	Usually laundered by the facility; colour may identify theatre staff
Non-sterile cover gown	Some tasks, or over scrubs when leaving and returning, depending on policy	Practice varies between facilities
Warm layer over scrubs	Warmth in cold theatres and corridors	Whether permitted, and what type, is set by local policy
Lab coat or long coat over scrubs	Leaving theatre for other areas, where policy allows	Some facilities require changing instead
Task-specific PPE	Aprons, eye protection, lead aprons and other items	Set by infection-control and safety policy, not uniform choice

Theatre attire rules differ between facilities and specialties, and policies change. Before buying anything, check your facility's current theatre attire policy with your infection-control and theatre management teams.

Why a defined policy matters

Without a clear policy, theatres tend to drift into mixed practice: some staff in personal fleeces, others in old surgeon gowns worn backwards as cover gowns, others leaving the department in scrubs with no cover. This creates infection-control questions, confusion about who is scrubbed and who is not, and wasted stock when sterile gowns are used for non-sterile purposes.

A good policy states:

• What each role wears in the restricted area.
• Whether a cover layer is permitted, required or banned, and in what circumstances.
• What happens when staff leave and return to the department.
• How garments are laundered, and whether home laundering is allowed.
• How roles are visually identified, if at all.

Using surgeon gowns as cover gowns: a common habit to review

In many theatres, older or lower-grade surgeon gowns end up being used as non-sterile cover gowns, worn back to front over scrubs. This can seem economical, but it has drawbacks:

• It blurs the visual difference between scrubbed and non-scrubbed staff.
• Gowns intended for the sterile route may get mixed back into sterile stock.
• It uses inventory you may have budgeted for surgical use.

If your facility wants non-sterile cover garments, it is usually clearer to specify them separately, with distinct colour or marking, and keep them out of the CSSD route entirely. Discuss this with infection control and CSSD before changing practice.

Practical considerations when choosing garments for support staff

Warmth

Theatres can feel cold to staff who are not moving much, such as anaesthetic teams monitoring a long case. If your policy allows a warm layer, specify one so staff are not tempted to bring their own.

Identification

Some facilities use different scrub colours for different roles. This can help visitors and new staff understand who is who, and helps distinguish theatre staff from ward staff. Keep the scheme simple; too many colours become hard to manage.

Pockets and function

Circulating staff carry pens, scissors, phones and notes. Scrubs and any cover layer with practical pockets make their job easier. Anaesthetic teams may want different pocket arrangements from porters.

Laundering

Garments worn in theatre are typically laundered by the facility or its contractor rather than at home, but this is a policy decision. Choose fabrics and marking that suit the laundry route. Our post on how to wash scrubs covers general care.

Sizes and quantities

Support staff work long shifts and may change several times. Plan quantities per person per shift, and include a full size range.

Visitors, students and external staff

Theatres also host people who are not part of the regular team: medical and nursing students, company representatives supporting equipment, visiting surgeons, engineers and observers. They often arrive without suitable clothing and end up in whatever is to hand.

A few simple provisions help:

• Keep a stock of visitor scrubs in a range of sizes, clearly marked so they return to the theatre store rather than a ward.
• Decide whether visitors wear a distinct colour or marking so staff can see at a glance who is an observer.
• Include visitors in the attire policy, with a short written briefing at the changing room.
• Plan visitor stock separately from staff stock so routine numbers are not depleted on busy teaching days.

Leaving and re-entering the department

The point where staff leave the theatre suite, for a break, to collect a patient or to attend another area, is where practice varies most. Some facilities require a change of scrubs on return, some allow a cover layer while outside, and some limit where theatre attire can be worn. Whatever the rule, it only works if the right garments are available at the exit and the entrance. If staff have to hunt for a cover layer or fresh scrubs, the rule will be bypassed.

A simple process for reviewing non-sterile theatre attire

1. Map the roles working in your theatre suite and what each currently wears.
2. Read the current policy and identify gaps or areas where practice differs from policy.
3. Consult infection control, theatre management and staff representatives on what should change.
4. Agree the garment list for each role, including colours and marking.
5. Specify and sample the garments, and trial them with staff.
6. Communicate the change with clear guidance and a start date.
7. Remove old or improvised garments from circulation, especially surgeon gowns used as cover gowns.

Checklist

• Current theatre attire policy reviewed with infection control
• Roles and garments mapped
• Clear rule on cover layers and leaving the department
• Sterile gowns kept for sterile use only
• Role colours, if used, kept simple
• Laundry route agreed
• Quantities planned per person per shift
• Staff trial before bulk

Next step

MISHAREN makes medical scrubs and reusable surgeon gowns at the same production unit, so theatre teams can coordinate colours and marking across scrubbed and non-scrubbed roles. See the OT gowns and drapes page, or describe your roles and policy through contact for a quotation.