LAB TECH INTERVIEW QUESTIONS

1. Explain your story I began my journey in the medical field with a strong interest in science,

particularly in understanding how the human body works and the role of diagnostics in

healthcare. I pursued a diploma in medical laboratory science, which provided me with the

foundational knowledge and practical skills needed for the job. Over the years, I’ve gained

experience in various laboratory settings, working on a wide range of diagnostic tests, from

routine blood work to more specialized molecular techniques. My passion for precision and

accuracy in diagnostics drives me to continuously improve my skills and contribute effectively to

the healthcare team.

2. List 5 hazards that can happen in the workplace

1. Biological Hazards: Exposure to infectious agents like bacteria, viruses, and fungi.
2. Chemical Hazards: Handling hazardous chemicals such as reagents, solvents, and

disinfectants.

3. Physical Hazards: Risks from equipment, like centrifuges and autoclaves, which can

cause injuries.

4. Ergonomic Hazards: Repetitive movements or improper posture leading to

musculoskeletal disorders.

5. Radiation Hazards: Exposure to ionizing radiation from equipment like X-ray

machines.

3. List 5 requirements in a request form

1. Patient Identification: Full name, date of birth, and unique identification number.
2. Test Requested: Specific test(s) required with clear instructions.
3. Clinical Information: Relevant clinical details that justify the test(s).

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4. Date and Time of Collection: When the specimen was collected.
5. Requesting Physician Information: Name, contact details, and signature of the requesting physician.

4. Mention 5 types of specimen collection containers

1. Vacutainer Tubes: Used for blood collection, with different additives like EDTA, heparin, or citrate.
2. Urine Cups: Sterile containers for collecting urine samples.
3. Stool Containers: Used for the collection of stool samples.
4. Swab Tubes: Contain swabs for collecting samples from the throat, nose, or wounds.
5. Histology Jars: Containers filled with formalin for preserving tissue biopsies.

5. Mention 5 patient rights

1. Right to Confidentiality: Ensuring the privacy of all patient information.
2. Right to Informed Consent: Patients must be informed and agree to any procedures or tests.
3. Right to Quality Care: Receiving accurate and timely medical services.
4. Right to Access Information: Patients can access their medical records and test results.
5. Right to Respect and Dignity: Patients should be treated with respect regardless of their background or condition.

6. Give Five Types of Blood Samples

1. Whole Blood: Used for tests like complete blood count (CBC).
2. Plasma: Obtained from anticoagulated blood and used for tests like coagulation profiles.
3. Serum: Derived from clotted blood, used for biochemical tests like liver function tests.
4. Arterial Blood: Used for blood gas analysis.
5. Capillary Blood: Collected from a finger prick, often used for glucose testing.

7. Different Tests Performed Depend On Several Factors, Explain Them Several factors influence the choice of tests performed in a laboratory:

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1. Clinical Indication: The patient’s symptoms or diagnosis guides the selection of tests.
2. Sample Type: Different tests require different types of specimens, such as blood, urine, or tissue.
3. Availability of Equipment: The laboratory’s capacity to perform specific tests depends on available equipment.
4. Urgency: Critical cases might require rapid testing (e.g., emergency blood work or cross-matching).
5. Patient History: Previous results and medical history may dictate the need for repeat or additional tests.

8. Explain about yourself I am a dedicated and detail-oriented medical laboratory professional with a diploma in medical laboratory science. I have a solid background in conducting various diagnostic tests, maintaining laboratory equipment, and ensuring accuracy in results. My strong organizational skills and commitment to patient care make me an asset to any healthcare team. I am constantly seeking opportunities to expand my knowledge and contribute to improving laboratory processes.

9. If we hire you, how much salary do you expect? My salary expectation is in line with the industry standards for a Laboratory Technician II position, considering my qualifications and experience. I am open to discussing a fair compensation that reflects my skills and contributions to the laboratory’s success.

10. Which blood group is a universal recipient? The universal recipient blood group is AB-positive (AB+). Individuals with this blood group can receive blood from any other blood type because they do not have antibodies that would react against A, B, or Rh antigens.

11. Difference between equipment and instrument and mention 5 equipment used daily in the laboratory

• Equipment: Refers to larger, complex machines or devices used for multiple functions in a laboratory (e.g., centrifuges, incubators).
• Instrument: Refers to smaller, precise tools or devices used for specific measurements or tasks (e.g., pipettes, microscopes).

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Five equipment used daily in the laboratory:

1. Centrifuge
2. Microscope
3. Incubator
4. Autoclave
5. Spectrophotometer

12. What is the sensitivity test in microbiology? A sensitivity test, also known as an antibiotic

susceptibility test, is used to determine the effectiveness of antibiotics against bacteria isolated

from a patient’s sample. This test helps in selecting the most appropriate antibiotic for treating a

bacterial infection by identifying which antibiotics the bacteria are sensitive to and which they

are resistant to. The results guide clinicians in prescribing the right antibiotic to ensure effective

treatment.

13. Can you describe your experience and qualifications that make you a good fit for this

role? I hold a diploma in medical laboratory science and have accumulated several years of

hands-on experience in various laboratory settings. My qualifications include proficiency in

conducting diagnostic tests, maintaining laboratory equipment, and ensuring quality control.

Additionally, I have experience working under strict timelines, which has honed my ability to

deliver accurate results efficiently. My strong attention to detail and commitment to continuous

learning make me a reliable and adaptable candidate for this role.

14. How do you handle tight deadlines and high-pressure situations? I prioritize tasks based

on urgency and importance, ensuring that critical tests are completed first. I also stay organized

by maintaining a clear schedule and breaking down tasks into manageable steps. During high
pressure situations, I remain calm and focused, drawing on my experience to make quick,

informed decisions. If necessary, I collaborate with colleagues to ensure that all tasks are

completed on time without compromising the quality of work.

15. What relevant skills do you possess that would contribute to the success of our team?

My key skills include proficiency in laboratory techniques such as PCR, microscopy, and blood

analysis. I have a strong understanding of quality control and assurance processes, ensuring that

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all results are accurate and reliable. I am also adept at using laboratory information management

systems (LIMS) for efficient data management. My teamwork and communication skills allow

me to collaborate effectively with colleagues, contributing to a positive and productive work

environment.

16. Can you provide an example of a challenging situation you faced at work and how you

resolved it? In a previous role, I encountered a situation where a critical piece of equipment

malfunctioned during a time-sensitive test. I quickly assessed the problem and realized that we

had a backup unit available. I immediately switched to the backup equipment and informed my

supervisor of the issue. To prevent future disruptions, I recommended a more rigorous

maintenance schedule for our equipment, which was implemented. This experience taught me

the importance of preparedness and proactive problem-solving.

17. How do you stay updated on industry trends and technology advancements relevant to

this position? I regularly read scientific journals and publications related to laboratory science

and diagnostics. I also attend relevant workshops, webinars, and conferences to stay informed

about the latest technological advancements and best practices in the field. Additionally, I

participate in professional networks and online forums where I can exchange knowledge and

experiences with other laboratory professionals.

18. Apparatus used to measure volume in the laboratory (Any 5)

1. Graduated Cylinder
2. Volumetric Flask
3. Pipette
4. Burette
5. Measuring Beaker

19. Components of eparanized centrifuged blood (Any 5)

1. Plasma
2. Buffy Coat (Contains white blood cells and platelets)
3. Red Blood Cells

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4. Electrolytes
5. Proteins (e.g., albumin, globulins)

20. Qualities of a good laboratory (Any 5)

1. Accuracy: Ensuring precise and correct results in all tests.
2. Efficiency: Timely processing and reporting of test results.
3. Safety: Adhering to strict safety protocols to protect staff and patients.
4. Organization: Well-organized workspace and systematic procedures.
5. Cleanliness: Maintaining a clean environment to prevent contamination.

Oral Interview – Laboratory Technician II, Marine Geosciences (UDSM)

21. Tell us about your school, college academic background, and experience. I completed my

diploma in medical laboratory science, where I gained extensive knowledge in various diagnostic

techniques and laboratory procedures. During my studies, I developed strong skills in handling

laboratory equipment, conducting tests, and interpreting results. My experience includes working

in different laboratory settings, where I’ve been responsible for sample processing, quality

control, and data management. I am now eager to apply my skills in the specialized field of

Marine Geosciences.

22. Mention five safety precaution measures in the laboratory.

1. Wearing Personal Protective Equipment (PPE): Such as gloves, lab coats, and

goggles.

2. Proper Waste Disposal: Following protocols for disposing of biological, chemical, and

sharps waste.

3. Chemical Labeling: Ensuring all chemicals are clearly labeled and stored correctly.
4. Safe Handling of Equipment: Operating laboratory equipment according to safety

guidelines.

5. Emergency Preparedness: Knowing the location of safety equipment such as fire

extinguishers and first aid kits.

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23. Give five reasons as to why laboratory chemicals have labels.

1. Identification: To clearly identify the chemical and avoid mix-ups.
2. Hazard Information: To inform users about potential risks and safety precautions.
3. Storage Instructions: To guide proper storage to prevent degradation or accidents.
4. Usage Guidelines: To ensure the chemical is used correctly for its intended purpose.
5. Regulatory Compliance: To meet legal and safety standards for handling hazardous substances.

24. Mention five parameters for soil sample testing.

1. pH Level
2. Nutrient Content (e.g., Nitrogen, Phosphorus, Potassium)
3. Organic Matter Content
4. Soil Texture
5. Moisture Content

25. Mention three methods of staining.

1. Gram Staining
2. Acid-Fast Staining
3. Hematoxylin and Eosin (H&E) Staining

Written Interview – Laboratory Technician II, Fisheries Laboratory

26. Current fish safety and quality have been improved due to HACCP system, which is

certified by ISO 9001:2015 for quality management and Total Quality Management

(TQM). Describe reasons for implementing such quality systems. The implementation of

HACCP and ISO 9001:2015 quality management systems in fisheries is essential to ensure food

safety, compliance with regulatory standards, and consumer protection. These systems help

identify and control potential hazards in the production process, ensuring that fish products are

safe for consumption. Additionally, they enhance product quality, reduce waste, and increase

efficiency in operations. Implementing TQM fosters continuous improvement, involving all

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employees in maintaining high standards, which ultimately leads to increased customer

satisfaction and trust in the products.

27. Measures to be taken when the following happens: a) Fish gasping on the water column

during the morning: This could indicate low dissolved oxygen levels. Immediate actions

include aerating the water, reducing feeding, and monitoring oxygen levels closely. b) Dead fish

found in the ponds: Remove the dead fish promptly to prevent contamination and spread of

disease. Investigate the cause of death by testing water quality and checking for signs of illness.

c) Birds eating on the fish ponds: Use deterrents such as netting over the ponds, scarecrows, or

other bird deterrents to prevent predation by birds.

28. Describe testing portfolio for fish and aquaculture. A testing portfolio for fish and

aquaculture includes a range of tests to ensure the health, safety, and quality of the fish. These

tests may include:

• Water Quality Tests: Monitoring parameters such as pH, ammonia, nitrite, nitrate,

dissolved oxygen, and temperature to maintain optimal conditions for fish.

• Pathogen Testing: Screening for bacterial, viral, and parasitic infections that could affect

fish health.

• Chemical Residue Testing: Detecting harmful substances like heavy metals, antibiotics,

and pesticides in fish.

• Nutritional Analysis: Assessing the nutritional content of fish feed and fish flesh to

ensure proper growth and quality.

• Sensory Evaluation: Evaluating the appearance, texture, smell, and taste of fish products

for consumer acceptance.

29. General hazards in a laboratory, describe 5.

1. Chemical Hazards: Exposure to toxic, corrosive, or flammable chemicals.
2. Biological Hazards: Risk of infection from pathogens in biological samples.
3. Physical Hazards: Injuries from equipment or sharp instruments.
4. Ergonomic Hazards: Strain injuries from repetitive tasks or poor posture.
5. Radiation Hazards: Exposure to ionizing radiation from certain laboratory instruments.

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30. Explain five major elements of a laboratory.

1. Personnel: Trained and qualified staff who perform laboratory procedures, maintain

equipment, and ensure accurate results.

2. Equipment: Properly maintained and calibrated instruments necessary for conducting

various tests and experiments.

3. Reagents and Supplies: High-quality chemicals, reagents, and other consumables

needed for conducting tests.

4. Standard Operating Procedures (SOPs): Detailed written instructions that standardize

laboratory processes to ensure accuracy and reliability.

5. Quality Control: Procedures and checks implemented to monitor the accuracy and

precision of laboratory tests and to maintain high standards.

31. Ways of collecting patient satisfaction.

1. Surveys and Questionnaires: Distributing structured forms to patients to gather

feedback on their experience.

2. Interviews: Conducting face-to-face or telephone interviews to discuss the patient’s

experience and gather detailed insights.

3. Suggestion Boxes: Providing anonymous suggestion boxes in the laboratory for patients

to leave their feedback.

4. Focus Groups: Organizing group discussions with patients to obtain qualitative

feedback.

5. Follow-Up Calls: Making calls after the service to ask patients about their satisfaction

and any issues they encountered.

32. Routine laboratory tests in hematology.

1. Complete Blood Count (CBC)
2. Erythrocyte Sedimentation Rate (ESR)
3. Coagulation Tests (e.g., PT, APTT)
4. Blood Film Examination
5. Hemoglobin Electrophoresis

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33. Characteristics of a container for histological specimens.

1. Leak-Proof: To prevent leakage of fixatives or the specimen itself.
2. Chemical-Resistant: To withstand the effects of formalin or other fixatives.
3. Labeled Properly: Clearly marked with patient information and specimen details.
4. Sufficiently Large: To accommodate the tissue sample without crushing or compressing it.
5. Sterile: To prevent contamination of the specimen.

34. Rejection criteria for laboratory specimens.

1. Incorrect Labeling: Specimen labels not matching the request form or lacking necessary patient information.
2. Insufficient Volume: The sample provided is inadequate for the required tests.
3. Improper Collection: Collected in the wrong container or using incorrect technique.
4. Contamination: Visible signs of contamination or degradation of the sample.
5. Delayed Transport: Specimen not transported under appropriate conditions or within the required time frame.

35. Criteria of a good specimen.

1. Properly Collected: Using the correct technique and container.
2. Sufficient Quantity: Adequate volume to perform all requested tests.
3. Correctly Labeled: Accurately identified with patient details and test requirements.
4. Uncontaminated: Free from contamination by external substances.
5. Properly Preserved: Stored and transported under conditions that maintain specimen integrity.

36. Biochemical tests used for identification of bacteria in the microbiology department.

1. Catalase Test
2. Coagulase Test
3. Oxidase Test

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4. Indole Test
5. Urease Test

37. Diagnostic tests for identification of human parasitic infection in medical laboratory.

1. Microscopic Examination (e.g., Stool Analysis for Ova and Parasites)
2. Serological Tests (e.g., ELISA for specific parasites)
3. Molecular Techniques (e.g., PCR for parasite DNA)
4. Antigen Detection Tests
5. Culture Methods (e.g., for protozoa)

38. Set of antisera reagents.

1. Anti-A
2. Anti-B
3. Anti-AB
4. Anti-D (for Rh typing)
5. Control Serum

39. Parameters of liver function tests.

1. Alanine Aminotransferase (ALT)
2. Aspartate Aminotransferase (AST)
3. Alkaline Phosphatase (ALP)
4. Bilirubin (Total and Direct)
5. Albumin

40. Parameters of renal function tests.

1. Serum Creatinine
2. Blood Urea Nitrogen (BUN)
3. Glomerular Filtration Rate (GFR)
4. Serum Electrolytes (e.g., Sodium, Potassium)
5. Urine Protein

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41. Strongyloidiasis prevention and control.

1. Improved Sanitation: Ensuring proper disposal of human waste to prevent soil

contamination.

2. **W