The Green Nail and the Friday Disinfectant

No - do not apply product to that nail, and do not buff the discoloration.

Reasoning from the presentation rather than from a memorized list:

• A green-black patch on the plate, with no pain, heat, or swelling and a history of a lifted/bumped enhancement, fits moisture trapped under product (a Pseudomonas-type bacterial colonization, often called "greenies"). It is not a cosmetic stain to be filed away.
• Buffing abrades the plate and can drive organisms deeper and aerosolize debris across your station.
• Covering the plate with acrylic seals in moisture and darkness - the exact conditions that let the problem spread.
• No enhancement should be applied over separated plate, and you cannot verify how much separation exists under that patch.

What to do:

1. Decline the service on that nail and explain plainly that you are not able to diagnose, but the change needs a physician's look before product is applied.
2. Do not "clean it out" with a drill bit or nippers.
3. Offer to service the other nine nails only if your implements for that hand stay separate and the client agrees; the safest answer is to reschedule everything.
4. Document the refusal, the appearance, and the referral in the client record.
5. Tell her what a doctor will want to know: when it appeared, what was on the nail before, and whether it has changed.

Nipper (metal, non-porous): the current practice fails on two counts.

• The solution: concentrate mixed Monday, topped off twice - you cannot know the concentration. The label itself says fresh daily, 24-hour use. Topping off dilutes an already-spent bath with water and debris. A disinfectant that is not at label concentration for the label contact time is not a disinfectant.
• The process: implements must first be cleaned - scrubbed with soap and water and dried - to remove debris and product, because soil shields organisms. Only then are they fully immersed in an EPA-registered hospital-grade disinfectant, prepared at label dilution, for the full label contact time (commonly around 10 minutes). Verify concentration with test strips, log it, and change the bath per the label.

Files and buffers (porous/abrasive): these cannot be cleaned and disinfected to a safe standard, and spraying is not immersion and does not meet any label direction. They are single-use: discard them or give them to the client, labeled with her name. Keeping them in an open tray that also holds clean items blurs the clean/dirty line.

Fix before the next client: separate clearly labeled "to be cleaned" and "disinfected, ready" containers; nothing goes from the open tray back onto a client.

Residual risks and corrections:

• Hands and wrists: wash with soap and water before and after every client and after removing gloves; gloves are not a substitute for hand hygiene, and a glove that touched the discolored plate must come off before you touch your drawer, phone, or clean implements.
• Work surface: the table, lamp handle, and client armrest are contact surfaces. Disinfect them between clients; a towel is not a barrier if it is reused.
• Product containers: never touch a contaminated hand to a bulk container. Dispense into a disposable cup or dish and discard the remainder; do not re-dip a brush into the main bottle.
• Waste: the used files went into an open tray. Use a covered, lined waste container and empty it at the end of the day; don't carry used implements in an apron pocket.
• Client flow: the client's hands touched the table, her bag, and the door. Offer hand sanitizer at intake and exit, and reset the station fully - fresh towel, fresh disposable items, disinfected metal - before the next client sits down.