Oregon Written Tattoo Practice Test

What is defined as a chemical agent with demonstrated tuberculocidal activity?

1. High-level disinfectant

2. Low-level disinfectant

3. Intermediate-level disinfectant

4. Standard cleaning agent

The correct answer is: High-level disinfectant

The correct choice refers to a chemical agent that has been shown to effectively kill Mycobacterium tuberculosis, the bacteria that causes tuberculosis. High-level disinfectants are specifically formulated to destroy a wide range of pathogens, including those that are particularly resistant or harmful. This capability makes them essential for use in environments where the highest standards of hygiene are crucial, such as medical facilities or places with a higher risk of infection transmission. While low-level and intermediate-level disinfectants may be effective against a variety of microorganisms, they do not possess the same robust efficacy against mycobacteria and are therefore not classified as tuberculocidal agents. Standard cleaning agents usually do not have the necessary antibacterial properties to achieve disinfection, especially against tough pathogens like tuberculosis. Therefore, understanding the classification of disinfectants based on their efficacy helps ensure that the appropriate agents are used in situations where thorough disinfection is vital.