Microbiology Med Lab Scientist - 3rd shift, Full-time
Posted Jul 15, 2026 · We last checked this listing on Oct 6, 2026
Likely interview questions for this role
Written from this job description, not a generic list. Each one notes what the interviewer is really checking.
About your past
Tell me about a time you made a mistake in reading a plate or slide. What did you learn?
What they are checking: Whether they own errors and improve their practice, which matters in microbiology.
How do you stay focused and accurate working third shift with fewer people around?
What they are checking: Whether they can work independently and stay sharp during overnight hours.
What would you do
What do you do when you get a critical microbiology result, like a positive CSF Gram stain?
What they are checking: Whether they know to call critical results quickly and document the call correctly.
A sample arrives that does not meet acceptance criteria. What do you do?
What they are checking: Whether they follow specimen rejection rules and communicate clearly with the care team.
About the work
Walk me through how you work up a positive blood culture on third shift.
What they are checking: Whether they know the steps and urgency of blood culture workups, which can be life-saving.
How do you decide whether an organism on a culture is a real pathogen or a contaminant?
What they are checking: Whether they can use clinical context and lab rules to report results that help, not confuse.
How do you stay safe when handling possibly dangerous organisms in the lab?
What they are checking: Whether they follow biosafety rules to protect themselves and others.
What automated systems for identification and susceptibility testing have you used?
What they are checking: Whether they can run and troubleshoot common microbiology instruments.
How do you handle QC failures for media or reagents?
What they are checking: Whether they stop and troubleshoot instead of reporting results that could be wrong.
What is different about microbiology in a children's hospital?
What they are checking: Whether they understand small sample sizes and the unique infections seen in children.
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Practice this out loudThe full job description
As published by Children's Wisconsin.