Top 10 Lab Technician Interview Questions and Answers [Updated 2024]

Sample Answer
In my previous role, we once had an issue with our centrifuge; it was making a strange noise and was not spinning at the correct speed. I started by referring to the equipment manual to understand the possible causes of the problem. I discovered that it could be due to an imbalance in the rotor. I redistributed the samples and ensured they were evenly spaced, but the problem persisted. I then considered that it might be a mechanical issue, so I reached out to the equipment manufacturer’s technical support. They suggested it could be an issue with the motor. I coordinated with our maintenance team to examine the motor, and they found a defect which was causing the malfunction. We were able to replace the faulty motor and get the centrifuge back in operation. From this experience, I learned the importance of not only relying on my own knowledge but also seeking help from others when necessary.

Sample Answer
I am well-versed in lab safety protocols, having completed OSHA’s Lab Standard Training. I always make it a point to follow protocols strictly, no matter how routine the procedure. For instance, I always wear appropriate personal protective equipment, handle hazardous materials with caution, and dispose of waste properly. In one instance, my strict adherence to safety protocols enabled me to quickly identify a colleague’s improper handling of a hazardous material. I was able to intervene and correct the situation, preventing potential harm.

Sample Answer
In my previous role as a lab technician at XYZ Labs, I worked extensively with automated laboratory systems, specifically the Beckman Coulter AU480 Chemistry Analyzer and the BD BACTEC Blood Culture System. I was responsible for ensuring these systems were functioning correctly and efficiently. I performed daily maintenance checks and troubleshooting as needed. I also completed a training course offered by Beckman Coulter to advance my technical skills with their system. I believe my experience and understanding of automated laboratory systems would be valuable in ensuring smooth lab operations here as well.

Sample Answer
Accuracy and reliability of test results are crucial in my work. I follow a strict protocol to ensure this. I perform regular calibrations and equipment maintenance. I frequently cross-check my results, especially when they are unexpected or critical. I also maintain a clean and organized workspace, which helps to avoid cross-contamination or mishandling of samples. In addition, I document all steps of the process meticulously, so there’s a record that can be checked and traced.

Sample Answer
I was once involved in a project that required extensive tissue sampling. The procedure was very delicate and required precise measurements. My attention to detail was crucial in this context. I had to ensure that each sample was exactly the same size, which required meticulous work. Additionally, I had to accurately record all the data, leaving no room for error. Ultimately, my ability to focus on these details enabled us to obtain consistent and reliable results, which was pivotal for the success of our research project.

Sample Answer
In my previous role, I was often required to manage multiple projects at the same time. I remember one particular instance when we had three projects running concurrently. To manage my tasks effectively, I made a list of all the tasks that needed to be done and prioritized them based on their deadlines and importance. I also used project management tools to keep track of the progress. This approach allowed me to complete all the projects on time without compromising the quality of my work.

Sample Answer
In my previous role at XYZ Lab, I was responsible for implementing and maintaining quality control measures for our testing procedures. This included routine calibration of lab equipment, monitoring of reagents, and regular review of lab procedures. On one occasion, I noticed a discrepancy in test results that was traced back to a batch of expired reagents. Because of the rigorous quality control checks I had put in place, we were able to quickly identify and correct the issue, preventing any further inaccurate results.

Sample Answer
In my previous role, I was responsible for the maintenance of various lab equipment like microscopes, centrifuges, and chromatography systems. I ensured they were cleaned and calibrated regularly, following the manufacturer’s guidelines. I also performed routine checks to identify any signs of wear and tear or malfunction. In cases where major repairs were needed, I coordinated with the vendor for service. I believe that maintaining our equipment in optimal condition is crucial in ensuring the accuracy and reliability of our lab results.

Sample Answer
If I suspected an error in the data, I would first recheck my own work to ensure that the error is not due to a mistake on my part. If the error persists, I would retest the sample or experiment to see if the same results occur. I would also compare the data to any similar data or experiments to identify any discrepancies. If after these steps the error still remains, I would consult with my supervisor or colleagues to get their input. I believe it’s crucial to ensure accuracy in all lab work and I’m always willing to take the necessary steps to verify results.

Sample Answer
In my previous role at XYZ Labs, I used the STARLIMS system on a daily basis. My responsibilities included logging in new samples as they arrived, tracking the progress of lab tests, and managing our lab inventory. I found the system very efficient and it greatly helped in maintaining organization in the lab. Additionally, I have some experience with LabVantage from a previous role. Although I haven’t used a LIMS in every role, I’m confident in my ability to quickly learn new systems.