CORRECT ANSWERS 2025
The three major phases of laboratory testing that a QA program should evaluate include
a. mean, standard deviation, and coefficient of variation.
b. pre-op, operative, and post-op.
c. pre-analytical, analytical, and post-analytical.
d. outpatient, inpatient, and non-patient. CORRECT ANSWER -c. pre-
analytical, analytical, and post-analytical.
The process by which test results achieve the same high levels of accuracy and precision that ca
n be reproduced across measurement systems, laboratories and time is referred to as
a. laboratory process control.
b. laboratory calibration.
c. laboratory standardization.
d. laboratory verification. CORRECT ANSWER -c. laboratory standardization.
What characteristics/functions do calibrators have?
a. They contain a known amount of analyte being tested.
b. They monitor the quality of reagents.
c. They monitor the quality of the sample.
d. They prevent equipment failure. CORRECT ANSWER -
a. They contain a known amount of analyte being tested.
An abrupt demonstrated change in the mean is a
,a. shift.
b. trend.
c. variance.
d. deviation. CORRECT ANSWER -a. shift.
Qualitative examinations are those that
a. qualify for waived testing.
b. produce non-numerical results.
c. do not require quality control.
d. do not require proficiency testing. CORRECT ANSWER -b. produce non-numerical results.
A property of a test that is used to describe its quality (such as accuracy, precision, sensitivity, et
c.) is a
a. performance characteristic.
b. performance enhancement.
c. performance verification.
d. performance specification. CORRECT ANSWER -a. performance characteristic
Under CLIA law, the process of testing and adjusting an instrument or test system to establish a
correlation between the measured response and the concentration or amount of the substance
that is being measuredby the test procedure is
a. calibration.
b. calibration verification.
,c. a challenge.
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d. quality control. CORRECT ANSWER -a. calibration.
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What agency determines the complexity of a lab test system?
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a. CMS
b. FDA
c. CDC
d. OSHA CORRECT ANSWER -b. FDA 0 0 0 0
Certain moderate complexity microscopy tests (such as urine sediment evaluation and skin scra
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pings) commonly performed by healthcare providers in the office setting are classified as
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a. provider moderate complexity tests. 0 0 0
b. provider exempt status. 0 0
c. provider personnel testing. 0 0
d. provider performed microscopy. CORRECT ANSWER -d. provider performed microscopy.
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Policies and procedures that are intended to promote the quality and validity of test data and e
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nsure the reliability and integrity of data generated by analytical laboratories is known as
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a. CLIA Law. 0
b. Quality Assurance Plan (QAP). 0 0 0
c. Good Clinical Laboratory Practice (GCLP).
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d. Total Quality Management (TQM). CORRECT ANSWER -
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c. Good Clinical Laboratory Practice (GCLP).
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, Devices based on electrophoretic principles are used in the clinical laboratory to perform all of t he
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following except to
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a. measure quantities of various proteins in plasma, urine, and CSF.
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b. separate enzymes into their component isoenzymes. 0 0 0 0 0
c. identify antibodies. 0
d. measure molecules in a characteristic spectrum called the emission spectrum.
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CORRECT ANSWER -
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d. measure molecules in a characteristic spectrum called the emission spectrum.
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The chemistry methodology that is based on the fact that substances of clinical interest selectiv ely
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absorb or emit electromagnetic energy at different wavelengths is
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a. flourometry.
b. atomicBabsorption.
c. spectrophotometry.
d. photometry. CORRECT ANSWER -c. spectrophotometry. 0 0 0 0
Given %T, how is absorbance calculated?
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a. log %T - 2. 0 0 0
b. log %T + 2. 0 0 0
c. 2 + log %T.
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d. 2 - log %T. CORRECT ANSWER -d. 2 - log %T.
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Prohibiting recapping of needles is an example of 0 0 0 0 0 0 0