Clinical Chemistry Trivia Questions

300 Questions | Total Attempts: 3029

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Clinical Chemistry Quizzes & Trivia

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Questions and Answers
  • 1. 
    Which of the following agencies is involved in protecting the safety of employees in the workplace?
    • A. 

      OSHA

    • B. 

      CAP

    • C. 

      NRA

    • D. 

      CMS

  • 2. 
    Which of the following best describes universal precautions?
    • A. 

      Wearing personal protective equipment in the lab

    • B. 

      Testing all patient specimens for anti-HIV-1/2

    • C. 

      Treating all specimens as potentially bioharzardous

    • D. 

      Washing hands immediately after removing gloves

  • 3. 
    Which of the following provide information on how to clean up a chemical spill?
    • A. 

      Material Safety Data Sheet

    • B. 

      Package insert

    • C. 

      Standard operating procedure

    • D. 

      Policy manual

  • 4. 
    According to the NFPA hazards identification system, what does the red quadrant indicate?
    • A. 

      A health hazard

    • B. 

      A flammable hazard

    • C. 

      A reactivity hazard

    • D. 

      Special instructions

  • 5. 
    Which of the following are bloodborne pathogens?
    • A. 

      TB and methiciliin resistant Staph auereus

    • B. 

      Hep C and vancomyocin resistant enterococci

    • C. 

      Human immunodeficiency virum and hep B

    • D. 

      Creutzfeldt-Jakob disease and hep A

  • 6. 
    A fire that is cuased by discarding a lit cigarette in a trash can is an example of what type of fire?
    • A. 

      Class A

    • B. 

      Class B

    • C. 

      Class C

    • D. 

      Class D

  • 7. 
    Which of the following is NOT considered presonal protective equipment
    • A. 

      Latex gloves

    • B. 

      Goggles

    • C. 

      Laboratory coat

    • D. 

      Eyeglasses

  • 8. 
    Respirator fittings are performed to protect employees against what airborne pathogen?
    • A. 

      Staph auereus

    • B. 

      Mycobacterium tuberculosis

    • C. 

      Human immunodeficiency virus

    • D. 

      Hepatitis B virus

  • 9. 
    A round bottomed glass tube with only 1 marking of 500 mL volume is called a 
    • A. 

      Erylynmeyer beaker

    • B. 

      Volumetric flask

    • C. 

      Graduated flask

    • D. 

      Measuring beaker

  • 10. 
    How is a TD pipet drained?
    • A. 

      Drain by gravity; do not touch tip of pipet to receiving vessel

    • B. 

      Drain by gravity; tip agaimst inside of receiving vessel surface

    • C. 

      Drain by gravity; rinse out with the diluting fluid

    • D. 

      Drain by gravity; expel last drop of diluent using bulb

  • 11. 
    Which of the following pipets is the most accurate and is used to reconstitute controls and calibratons?
    • A. 

      Volumetric

    • B. 

      Serological

    • C. 

      Measuring

    • D. 

      Graduated

  • 12. 
    Chemistry analytes such as glucose and cholesterol are an example of which of the following?
    • A. 

      Solvent

    • B. 

      Solute

    • C. 

      Solution

    • D. 

      Buffer

  • 13. 
    Which of the following concentrations is expressed in moles/liter?
    • A. 

      Molality

    • B. 

      Normality

    • C. 

      Molarity

    • D. 

      Percent concentration

  • 14. 
    The CLS student lab swinging bucket centrifuge is an example of which of the following?
    • A. 

      Horizontal centrifuge

    • B. 

      Fixed angle centrifuge

    • C. 

      Angle-head centrifuge

    • D. 

      Ultracentrifuge

  • 15. 
    What is the formula for relative centrifugal force?
    • A. 

      1.18 x 10^-5 (r)(rpm^2)

    • B. 

      1.18 x 10^5 (r)(rmp^2)

    • C. 

      1.18 x 10^-5 (r^2)(rpm)

    • D. 

      1.18 x 10^5 (r^2)(rpm)

  • 16. 
    A solution contains 300 g/L of NaCl (GMW=58.5).  What is the molarity of the solution?
    • A. 

      1.9 M

    • B. 

      2.0 M

    • C. 

      3.0 M

    • D. 

      5.1 M

  • 17. 
    An enzyme result is 1530 U/L but is flagged out of instrument linearity.  Using 0.1 mL of patient sample and 0.2 mL of dilutent, the laboratorian makes a dilution and repeats the analysis.  What dilution factor should the diluted result be multiplied by?
    • A. 

      1

    • B. 

      2

    • C. 

      3

    • D. 

      4

  • 18. 
    In a serial dilution, if tube 1 is undiluted and twofold dilutions are used thereafter, what is the titer in tube #10?
    • A. 

      128

    • B. 

      256

    • C. 

      512

    • D. 

      1024

  • 19. 
    Which of the following is NOT a SI unit of measurement?
    • A. 

      Meter

    • B. 

      Moles

    • C. 

      Liter

    • D. 

      Celsius

  • 20. 
    How is 100 degrees F recorded in Celcius?
    • A. 

      22

    • B. 

      35

    • C. 

      38

    • D. 

      42

  • 21. 
    What is the mean of the following BUN control values           19.9, 20.0, 20.2, 21.9
    • A. 

      20

    • B. 

      20.1

    • C. 

      20.5

    • D. 

      21.0

  • 22. 
    Using expired reagents to assay patient samples will result in an error in what phase of lab testing?
    • A. 

      Preanalytical

    • B. 

      Analytical

    • C. 

      Postanalytical

    • D. 

      Will not cause an error

  • 23. 
    What is the most commonly analyzed specimen in chemistry?
    • A. 

      Plasma

    • B. 

      Serum

    • C. 

      Whole blood

    • D. 

      24 hour urine

  • 24. 
    EDTA-K3 is not an acceptable specimen for most chemistry tests.  What color tube would be recieved in the lab if it was drawn in error?
    • A. 

      Red

    • B. 

      Purple

    • C. 

      Blue

    • D. 

      Green

  • 25. 
    What is serum?
    • A. 

      Liquid component of blood including all coagulation factors

    • B. 

      Liquid component of blood synonymous with absorbed proteins

    • C. 

      Cellular component of blood above the red cells

    • D. 

      Liquid component of blood without presence of fibrinogen

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