Exp 2

Question 1

Refers to how close a measurement us to the true or accepted value

Answer 1

Accuracy

Question 2

How close results are when the same sample is tested multiple times

Answer 2

Precision

Question 3

Range of values over which the laboratory can verify the accuracy of the system

Answer 3

Reportable range

Question 4

Formally called normal value

Answer 4

Reference interval

Question 5

The lowest concentration of a substance that can be detected by a test method

Answer 5

Analytical sensitivity

Question 6

The ability of the method to measure only the analyte it is supposed to measure

Answer 6

Analytical specificity

Question 7

A specimen with known assay values that is concurrently with patient specimens of unknown values

Answer 7

Control

Question 8

Process of testing and adjusting the analyzer’s readout to establish the correlation between measured and actual concentrations

Answer 8

Calibration

Question 9

Reference material with a known concentration of analyte

Answer 9

Calibrator

Question 10

% of the population with the disease that tests positive

Answer 10

Diagnostic sensitivity

Question 11

% of the population without the disease that tests negative

Answer 11

Diagnostic specificity

Question 12

% of the time that a positive result is correct

Answer 12

Positive predictive value

Question 13

% of the time that a negative result is correct

Answer 13

Negative predictive value

Question 14

Study to verify the accuracy of the new method

Answer 14

Correlation study

Question 15

Schedule of maintenance to keep equipment in peak operating condition

Answer 15

Preventive maintenance

Question 16

Procedures specified by the manufacturer to evaluate critical operating characteristics of a test system

Answer 16

Function checks

Question 17

Comparison of patient with previous results

Answer 17

Delta checks