Top 20 Interview Questions & Answers for Lab Technician Roles – 2026

Preparing for a lab technician job interview? This guide provides a list of essential questions and answers that will help you showcase your technical expertise, attention to detail, and experience working in a laboratory setting. Whether you're applying for a role in a medical, research, or industrial lab, these questions cover all key areas of the job.

General Questions

• 1. Tell me about your experience working in a laboratory setting.
  I have 3 years of experience working as a lab technician in a medical lab. During this time, I have gained extensive knowledge and hands-on experience with various laboratory techniques, such as microscopy, cell culture, and DNA extraction. I have also become proficient in using laboratory equipment and maintaining accurate records of experiments and results.
• 2. Can you walk me through your educational background and how it relates to this role?
  I have a Bachelor's degree in Biology and a certification in Medical Laboratory Science. This education has provided me with a strong foundation in fundamental scientific principles and laboratory processes. Additionally, my certification has given me further practical skills in performing lab tests and analyzing data accurately.
• 3. In your opinion, what are the most important qualities for a lab technician to possess?
  Attention to detail, time management, and the ability to follow protocols and safety procedures are crucial qualities for a lab technician. On top of that, strong communication skills, teamwork, and the ability to troubleshoot and problem-solve effectively are also necessary to excel in this role.
• 4. How do you handle working under pressure and meeting tight deadlines?
  I am accustomed to working in a fast-paced environment and have developed excellent time management skills. I prioritize tasks and make sure to allocate enough time for each one, while also ensuring that quality is not compromised. In high-pressure situations, I remain calm and focus on keeping a clear head to complete tasks efficiently.
• 5. Tell me about a time when you faced a difficult problem in the lab and how you handled it.
  In my previous role, we were conducting an experiment that was not producing the expected results. After thorough troubleshooting and consulting with my team, we identified that the equipment was not functioning properly due to a technical error. I immediately contacted the supplier and arranged for a technician to fix the issue. In the meantime, I was able to find a temporary solution to continue the experiment and successfully completed it once the equipment was repaired.

Technical Skills & Experience

• 6. What is your experience with laboratory equipment like?
  I have experience using a variety of laboratory equipment, including microscopes, centrifuges, PCR machines, and spectrophotometers. I am confident in operating these machines and following standard maintenance procedures to ensure their accuracy and functionality.
• 7. How do you ensure accuracy and precision in your work?
  I am meticulous in following procedures and protocols, especially when it comes to accurate measurement and data recording. I double-check all steps and use calibrated equipment to ensure precise results. I also consult with my colleagues to confirm any doubts and improve accuracy.
• 8. How do you handle hazardous chemicals and maintain safety in the lab?
  I have received extensive training on handling and storing hazardous chemicals, and I strictly follow all safety protocols. I also make sure to wear personal protective equipment, maintain a clean and organized workspace, and promptly dispose of all waste materials.
• 9. Can you tell me about a time when you had to troubleshoot an issue with an experiment or procedure?
  In one experiment, the results were not consistent with previous data. I immediately checked all steps and variables, and eventually, I found that one reagent was expired. I replaced the reagent and re-did the experiment, which resulted in accurate and consistent results.
• 10. How do you stay current on new laboratory techniques and technologies?
  I regularly attend workshops and seminars related to my field and network with other professionals to exchange knowledge. I also keep up-to-date with industry publications and research to stay informed of any advancements in laboratory techniques and technologies.

Behavioral Questions

• 11. Can you tell me about a time when you demonstrated strong problem-solving skills in the lab?
  In a previous experiment, we encountered a problem with contamination in our samples. I initiated a brainstorming session with my colleagues to come up with potential solutions. Eventually, we altered our lab techniques and followed strict sterilization protocols, which successfully eliminated contamination and resulted in accurate data.
• 12. How do you handle conflicts with your colleagues or superiors in the workplace?
  I believe open communication and finding common ground are crucial in resolving conflicts. In one instance, I had a disagreement with a colleague on the approach for a project. I calmly discussed our ideas and found a compromise that incorporated both of our suggestions. We were able to complete the project effectively, and our working relationship improved.
• 13. Tell me about a time when you demonstrated strong communication skills in the lab.
  In my previous role, I had to train a new team member on proper lab techniques and procedures. I understood the importance of clear communication, especially when it comes to accuracy and safety. I explained each step in detail and answered any questions she had. By the end of the training, she was able to effectively perform lab tasks, and our team's productivity increased as a result of clear communication.
• 14. Can you tell me about a time when you had to handle a large workload?
  In my previous role, we were short-staffed for a major project. I had to take on additional responsibilities and effectively prioritize tasks to meet the project deadline. I communicated with my superiors and asked for support when needed. Despite the increased workload, I was able to complete all tasks accurately and on time.
• 15. How do you handle unexpected changes or setbacks in an experiment or project?
  In my experience, unexpected changes or setbacks are inevitable in laboratory work. I stay calm and follow a logical troubleshooting process to identify the issue and find a solution. I also consult with my team and seek outside resources for advice if needed.

Situational Questions

• 16. Imagine you are performing experiments on a tight deadline, and there is a power outage. What steps would you take to keep the experiments on track?
  In this situation, I would prioritize experiments that require strict time constraints and ensure they can continue uninterrupted. For experiments that are less time-sensitive, I would use alternative sources of power, such as a generator, or reschedule them to a different day.
• 17. If you suspect an error in the data you collected, what steps would you take to confirm it and find the source of the error?
  I would carefully review the steps and variables involved in the experiment to identify any potential causes of error. If the error cannot be determined, I would consult with my colleagues and compare results to previous data to confirm the error. If necessary, I would repeat the experiment to verify the results.
• 18. You notice a colleague not following proper safety protocols in the lab. How do you address this issue?
  I would approach my colleague privately and remind them of the importance of following safety protocols in the lab. If the behavior continues, I would report it to my supervisor to ensure the safety of all lab personnel.
• 19. Imagine you are conducting an experiment in which you are required to work with a toxic chemical. How would you prepare for this experiment?
  I would review all safety protocols and procedures related to working with the chemical and make sure to follow them meticulously. I would also ensure that appropriate personal protective equipment is readily available and worn throughout the experiment. I would also have a coworker present to assist in case of an emergency.
• 20. If you notice a potential problem with an experiment or process, but your superiors are not available to consult, what would you do?
  I would document the issue and inform my superiors as soon as possible. In the meantime, I would consult with my colleagues for potential solutions and, if necessary, halt the experiment or process until a decision is reached by my superiors.