Fun Quiz: Test Your General Laboratory Knowledge

#1. Bichromatic analysis is used in automation to

Measure samples twice at timed intervals

Verify wavelength calibration

Blank for background interference

Decrease testing time

#2. Which of the following is considered a systemic error?

Mislabeling

Incorrect sampling

Voltage fluctuations

Faulty ion specific electrode (ISE)

Drug interference

#3. Instrumentation that measures light blocked by particulate matter as light passes through the cuvette by a colorimeter or spectrophotometer

Chromatography

Turbidimetry

Potentiometry

Osmometry

Nephelometry

#4. Term used to describe a range in which 95% of the population is expected to fall

Reference range

Range of means

Quality control

Standard deviation

Analytical range

#5. Which of the following is an analytical variable?

Ambient temperature and humidity

Improper anticoagulant used

Analyzer interface issue

Wrong patient drawn

Hemolyzed specimen

#6. Indicate that a dramatic change has occurred in the most recent result when compared to the previous value.

Critical checks

Quality control checks

Out of range checks

Calibration checks

Delta checks

#7. While performing an electrophoresis, it is noted that crescent-shaped bands develop. The next course of action is to repeat the electrophoresis and

Use a new lot number of support media

Use serum instead of plasma

NOT overload the sample

Reduce the application pressure

#8. The following are ways to minimize droplets and aerosols except

Open tubes AWAY from you

Cover all tubes before centrifugation

Operating the centrifuge with the cover closed

Completely mix tubes by gently inverting them 8 - 10 times

#9. According to OSHA, employers must offer this vaccine at no cost to all personnel with Category 1 and Category 2 Exposure Risks

COVID-19

Hepatitis B

HIV

Malaria

Influenza

#10. Most common pH used in protein electrophoresis

2.0

7.0

8.6

13.0

4.5

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