QA AND QCII
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reporting a positive result in a patient who has a the disease a. TP b. FP c. TN d. FN
True positive reporting a POSITIVE result in a patient WHO HAS a the disease false negative reporting a positive result in a patient who DOESN’T have the disease
reporting a negative result in a patient who has a the disease a. TP b. FP c. TN d. FN
false negative reporting a NEGATIVE result in a patient WHO HAS a the disease true negative reporting a negative result in a patient who doesn’t have disease
% of population with the disease that test positive a. diagnostic sensitivity b. diagnostic specificity c. positive predictive value d, negative predictive value
diagnostic sensitivity % of population WITH THE DISEASE that test positive diagnostic specificity % of population WITHOUT THE DISEASE that test positive
MOST COMMON PRESENTATION FOR EVALUATING QC RESULTS a. shewart plot b. gaussian curve c. levey jennings control chart
levey jennings control chart • also known as SHEWART PLOT • most common presentation for evaluating QC results
which of the following errors has a main cause is deterioration of reagents a. trend b. shift c. outliers
trend • control values increase or decreasing for six consecutive runs • main cause : deterioration of reagents
which of the following errors is six consecutive control values on the same side of the mean a. trend b. shift c. outliers
shift • six consecutive control values on the same side of the mean • main cause: improper calibration of specimen
what type of error is 1(3S) a. systematic b. randome
systematic • 2 (2S) • 4(1S) • 10x random • 1(3S) • R (4S)
which of the westgard rules is the warning flag a. 1(2S) b. 1(3S) c. 2(2S) d. aota
1(2S)
what kind of error is sampling error a. random b. systemic
random error • error due to dirty glassware • use of wrong pipet • voltage fluctuation • sampling error • anticoagulant/drug interference
consists of evaluation of method performance by comparison of results vs those other laboratories for the same set of samples a/ random error b. proficiency testing c. diagnostic sensitivty
proficiency tetsing