Quality Control Exam Questions with 100%
Verified Answers
Internal QC, Proficiency Testing, Accreditation, Quality Assurance Monitoring and
Laboratory Utilization - ✔️✔️what are the indicators of analytic performance
precision study - ✔️✔️first step in method evaluation that estimates the random
error
29% - ✔️✔️Non laboratory personnel were responsible for ____ of the errors
within regard to laboratory results.
Online compute input - ✔️✔️the most error-free means of requesting laboratory
tests.
ALLOWABLE ERROR (Ea) - ✔️✔️it is based on the quantity of error that will
negatively affect clinical decisions
Ea or fixed limits - ✔️✔️the total error must be less than the ___ or ______ ______
for a method to be considered acceptable.
QC Chart - ✔️✔️Is used to observe values of control materials over time to
determine reliability of the analytical method.
inaccuracy and imprecision - ✔️✔️QC Chart is utilized to detect and observe
analytic errors such as?
,GAUSSIAN CURVE - ✔️✔️It occurs when the data set can be accurately described by
the SD and the mean.
Bell-Shaped Curve, Normal Distribution Curve - ✔️✔️gaussian curve is also known
as
GAUSSIAN CURVE - ✔️✔️It occurs when data elements are centered around the
mean with most elements close to the mean.
GAUSSIAN CURVE - ✔️✔️It focuses on the distribution errors from the analytical
method rather than the values from a healthy or patient population.
both random and systematic error. - ✔️✔️what can gaussian curve identify
CUMULATIVE SUM GRAPH (CUSUM) - ✔️✔️It calculates the difference between QC
results and the target means.
V mask - ✔️✔️cumulative sum graph common method is?
CUMULATIVE SUM GRAPH (CUSUM) - ✔️✔️It identifies consistent bias problems; it
requires computer implementation
CUMULATIVE SUM GRAPH (CUSUM) - ✔️✔️This plot will give the earliest indication
of
systematic errors (trend) and can be used with the 13s rule.
, 45o or a decision (+ 2.7 SD) is exceeded. - ✔️✔️In cumulative sum graph results are
out of control when the slope exceeds?
A. YOUDEN/TWIN PLOT
B. low control serum
C. (y axis) and
thee other specimen on the abscissa (x- axis) - ✔️✔️(A)
- Will identify systematic error
- •It is used to compare results obtained on
a high and (B) from different laboratories
- It displays the results of the analyses by plotting the mean values for one
specimen on the ordinate (C)
SHEWHART LEVY-JENNINGS CHART - ✔️✔️AKA DOT CHART
SHEWHART LEVY-JENNINGS CHART - ✔️✔️•It is a graphic representation of the
acceptable limits of variation in the results of an analytical method
•It easily identifies random and systematic errors
1. TREND
2. SHIFT
3. OUTLIERS - ✔️✔️STATE THE ERRORS THAT CAN BE OBSERVED ON LJ CHART
A. TREND
B. deterioration of reagents - ✔️✔️Is formed by control values
Verified Answers
Internal QC, Proficiency Testing, Accreditation, Quality Assurance Monitoring and
Laboratory Utilization - ✔️✔️what are the indicators of analytic performance
precision study - ✔️✔️first step in method evaluation that estimates the random
error
29% - ✔️✔️Non laboratory personnel were responsible for ____ of the errors
within regard to laboratory results.
Online compute input - ✔️✔️the most error-free means of requesting laboratory
tests.
ALLOWABLE ERROR (Ea) - ✔️✔️it is based on the quantity of error that will
negatively affect clinical decisions
Ea or fixed limits - ✔️✔️the total error must be less than the ___ or ______ ______
for a method to be considered acceptable.
QC Chart - ✔️✔️Is used to observe values of control materials over time to
determine reliability of the analytical method.
inaccuracy and imprecision - ✔️✔️QC Chart is utilized to detect and observe
analytic errors such as?
,GAUSSIAN CURVE - ✔️✔️It occurs when the data set can be accurately described by
the SD and the mean.
Bell-Shaped Curve, Normal Distribution Curve - ✔️✔️gaussian curve is also known
as
GAUSSIAN CURVE - ✔️✔️It occurs when data elements are centered around the
mean with most elements close to the mean.
GAUSSIAN CURVE - ✔️✔️It focuses on the distribution errors from the analytical
method rather than the values from a healthy or patient population.
both random and systematic error. - ✔️✔️what can gaussian curve identify
CUMULATIVE SUM GRAPH (CUSUM) - ✔️✔️It calculates the difference between QC
results and the target means.
V mask - ✔️✔️cumulative sum graph common method is?
CUMULATIVE SUM GRAPH (CUSUM) - ✔️✔️It identifies consistent bias problems; it
requires computer implementation
CUMULATIVE SUM GRAPH (CUSUM) - ✔️✔️This plot will give the earliest indication
of
systematic errors (trend) and can be used with the 13s rule.
, 45o or a decision (+ 2.7 SD) is exceeded. - ✔️✔️In cumulative sum graph results are
out of control when the slope exceeds?
A. YOUDEN/TWIN PLOT
B. low control serum
C. (y axis) and
thee other specimen on the abscissa (x- axis) - ✔️✔️(A)
- Will identify systematic error
- •It is used to compare results obtained on
a high and (B) from different laboratories
- It displays the results of the analyses by plotting the mean values for one
specimen on the ordinate (C)
SHEWHART LEVY-JENNINGS CHART - ✔️✔️AKA DOT CHART
SHEWHART LEVY-JENNINGS CHART - ✔️✔️•It is a graphic representation of the
acceptable limits of variation in the results of an analytical method
•It easily identifies random and systematic errors
1. TREND
2. SHIFT
3. OUTLIERS - ✔️✔️STATE THE ERRORS THAT CAN BE OBSERVED ON LJ CHART
A. TREND
B. deterioration of reagents - ✔️✔️Is formed by control values
