20. Work is being done with Mycobacterium tuberculosis in the microbiology laboratory. It is important to prioritize safety when working in the laboratory since the pathogen can produce high risks. Thus, the following protective materials should be present in the laboratory, EXCEPT: Autoclave Effluent decontamination system Air-purifying respirator Positive pressure protective suit Which of the following may be a potentially hazardous biological situation? Handling specimens collected from patients in isolation according to standard precautions Opening the centrifuge lid even though the system has not stopped completely Discarding sharp objects, including broken glass, in a puncture-proof container Discarding disposable blood collection needles in a puncture-proof container

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