Lab Technician Questions – Set 2
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Lab Technician Questions – Set 2 - sample questions with answers
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1. Which flagellate parasite is frequently found in the urine of female patients?
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Answer: Trichomonas vaginalis
Trichomonas vaginalis is a flagellate frequently found in the urine of female patients.
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2. How does a deficiency of Factor VIII affect the coagulation process?
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Answer: Affects the first stage
A deficiency of Factor VIII affects the first stage of the coagulation process.
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3. Which characteristic is a primary feature of any antigen?
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Answer: High order of specificity
A high order of specificity is a characteristic of any antigen.
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4. At what percentage of NaCl does hemolysis begin in a normal screening test for red cell osmotic fragility?
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Answer: 0.50% NaCl
A normal screening test for red cell osmotic fragility shows hemolysis beginning at 0.50% NaCl.
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5. At what temperature and for how long should serum be heated to be inactivated?
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Answer: 56°C for 30 minutes
Serum is typically inactivated by heating it to 56°C for 30 minutes.
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6. Which stain is used to count reticulocytes?
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Answer: Brilliant cresyl blue and new methylene blue
Brilliant cresyl blue and new methylene blue are stains used to count reticulocytes.
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7. What is the primary cation found in extracellular fluid?
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Answer: Sodium
Sodium is the primary cation found in extracellular fluid.
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8. In which condition is Rh immune globulin administered?
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Answer: Rh(D) negative mother with Rh(D) positive fetus
Rh immune globulin is administered to an Rh(D) negative mother who has delivered an Rh(D) positive fetus.
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9. Which condition can be detected by the presence of ketone bodies in the urine?
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Answer: Metabolic acidosis
Metabolic acidosis can be detected by the presence of ketone bodies in the urine.
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10. What is the main element that provides humoral immunity?
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Answer: Gamma globulin
Gamma globulin provides humoral immunity.
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11. Which test is performed to confirm the presence of treponemal antibodies?
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Answer: Fluorescent treponemal antibody (FTA-AB) test
The FTA-AB test confirms the presence of treponemal antibodies.
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12. According to Landsteiner's principle, if a specific antigen is present on blood cells, what happens in the serum?
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Answer: The corresponding antibody is absent
According to Landsteiner, if a specific antigen is present on blood cells, the corresponding antibody is absent from the serum.
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13. Which chemical is used to identify Streptococcus pneumoniae?
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Answer: Optochin
Optochin is used to identify and differentiate Streptococcus pneumoniae from other Streptococcus species.
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14. Which feature is found in virulent strains of Streptococcus pneumoniae?
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Answer: Capsule
Virulent strains of Streptococcus pneumoniae produce capsules.
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15. Which parasite is known as the pinworm?
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Answer: Enterobius vermicularis
Enterobius vermicularis is commonly known as the pinworm.
This chapter has 30 questions. Practise them all with timing, answers and explanations.