Lesson 3 - Quality Assessment & Quality Control pt1 Flashcards
A statistical average of a set of values is called a
A. Mean
B. Median
C. Mode
D. Range
A. Mean
If a test is determined to be both accurate and precise; it is said to be ______.
A. Accurately precise
B. Inaccurate precision
C. Reliable
D. Accurate unprecise
C. Reliable
The ____ is used in the laboratory to give the relative variability of a test procedure.
A. Mean
B. CV
C. Trend
D. SD
B. CV
Six values that consistently remain above the mean is called a ______.
A. out-of-control
B. standard deviation
C. Trend
D. Shift
D. Shift
An out-of-control value is one that falls outside of ____ SD (standard deviation) from the mean.
A. three
B. five
C. two
D. one
C. two
Each lab that falls between the _____ standard deviation passes the proficiency testing survey.
A. 1 SD
B. 2 SD
C. 3 SD
B. 2 SD
Each lab that falls outside of the _____ standard deviation must investigate and take corrective actions.
A. 1 SD
B. 2 SD
C. 3 SD
B. 2 SD
Define CAP
College of American Pathologists
Define AACC
American Association for Clinical Chemistry
Proficiency testing is an _____ quality control program?
A. Internal
B. External
C. Simple
B. External
Proficiency testing is protected under what federal law?
A. CAP
B. AACC
C. CLIA 88’
C. CLIA 88’
What company takes and calculates the mean and standard deviation of tests from the lab?
Survey company such as CAP or AACC.
Quality assessment involves _____ and administrative procedures to achieve quality goals.
A. bosses
B. plans & procedures
C. training
B. plans & procedures
True or false: Quality control helps to identify and minimize analytical errors.
True
How many types of quality control are there?
A 1
B 2
C 3
B 2
Define lyophilized
To be in powder form
What do you add to lyophilize to reconstitute (rehydrate) the powder?
Water
Define a reagent
A sample used to create a chemical reaction
What is most important about reagents?
Storage management & chemical contamination
How should you rotate stock of chemicals?
Rotate oldest to be used first.
If the phlebotomist draws the wrong tubes for laboratory testing, in what phase of testing does this error occur?
a. Non-examination
b. Examination
c. Post-examination
d. Pre-examination
d. Pre-examination
An example of a non-examination factor that causes laboratory error is __________.
Select one:
a. Expired reagents
b. Patient not fasting
c. Entering wrong results in the LIS
d. Not enough staff in the laboratory
d. Not enough staff in the laboratory
True or false: External controls are used to survey or test laboratory proficiency.
True
If a refrigerator temperature is above the acceptable limit, you should __________.
Select one:
a. Record the temperature and adjust the temperature control knob
b. Record the temperature and notify your supervisor
c. Adjust the temperature control knob then record the temperature when it is acceptable
d. Notify your supervisor before recording the temperature
Record the temperature and notify your supervisor
Reliability of a test results means the test is __________.
Select one:
a. Both precise and accurate
b. Accurate
c. Neither precise nor accurate
d. Precise
a. Both precise and accurate
Six or more consecutive values that do not touch or cross the mean on a Levey-Jennings chart is a __________.
Select one:
a. Trend caused by a gradual change from the mean
b. Trend caused by a sudden change from the mean
c. Shift caused by a gradual change from the mean
d. Shift caused by a sudden change from the mean
d. Shift caused by a sudden change from the mean
The range of distribution of values above and below the mean is __________.
Select one:
a. Coefficient of variation
b. Standard deviation
c. Accuracy
d. Precision
b. Standard deviation
