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OPA (ortho-phthalaldehyde)
Also called: ortho-phthalaldehyde, high-level disinfectant
A high-level disinfectant that works faster than glutaraldehyde.
OPA is a 0.55% high-level disinfectant. In the US its labeled high-level disinfection time is 12 minutes. It stains proteins, including unprotected skin, gray. Like glutaraldehyde, it is limited to heat-sensitive semicritical items.
How to spot it
- A labeled jug of clear solution and a covered soaking container with test strips nearby.
What it is used for
- Soak, rinse and handle exactly as the label directs; test the solution strength as directed.
Safety and care
- Wear chemical-resistant gloves, eye protection and a gown; it can stain skin and irritate eyes and lungs.
- Use with good ventilation and a covered container.
Related
Sources: CDC. Guideline for Disinfection and Sterilization in Healthcare Facilities (2008): Chemical Disinfectants, CDC. Guidelines for Infection Control in Dental Health-Care Settings, 2003. MMWR 2003;52(RR-17)