A Physical containment level 2 (PC 2) laboratory is used when working with: Group of answer choices Risk group 2, 3 & 4 microbes Risk group 1 microbes only Any microbe Risk group 1 & 2 microbes

A Physical Containment Level 2 (PC 2) laboratory is used when working with Risk group 1 & 2 microbes.

Here's why:

Physical containment levels (PC) are standards for laboratory practices, safety equipment, and facility construction, aimed at protecting workers, the environment, and the public from exposure to biohazards. The levels range from PC1 (lowest level of containment) to PC4 (highest level of containment).

PC2 is designed for work involving moderate-risk agents that cause human disease of varying severity. It can also prevent the release of possibly harmful organisms into the environment.

Risk Group 1 (RG1) microbes are not associated with disease in healthy adult humans. Risk Group 2 (RG2) microbes are associated with human disease which is rarely serious and for which preventive or therapeutic interventions are often available.

Therefore, a PC2 lab is suitable for work with RG1 and RG2 microbes. It is not equipped to safely handle RG3 and RG4 microbes, which are associated with serious or lethal human disease.