CLT Exam 1 Questions with All Correct Answers

CLT Exam 1 Questions with All Correct Answers Which of the following statements is true? - ANSWER At minimum two levels of control should be tested daily for each test run in the laboratory. When comparing an instrument to its peer group, which statistic provides the most useful information regrind its ACCURACY - ANSWER SDI- standard deviation index When comparing an instrument to its peer group, which statistic provides the most useful description of OVERALL IMPRECISION - ANSWER CVR 2(2s) - ANSWER Detects systematic error 1(3s) - ANSWER Detects rondom error If the light source on an instrument is gradually weakening, it could contribute to what type of error? - ANSWER Systematic error If you change reagent on the instrument and your control results demonstrates a sudden and consistent increase in value, this phenomena is - ANSWER A shift in performance due to systematic error If one of two control values within a single test run is between 2s and 3s on the positive side, you should - ANSWER Accept the run if no error can be detected Dilution - ANSWER Decrease concentration by adding water/solvent Solute - ANSWER Substance being dissolved Solvent - ANSWER The substance in which the solute dissolves in Ratio - ANSWER Comparison of solute to solvent Example of ratios to dilutions (3/27) - ANSWER Dilution- 1/9 Dilution factor- 9 Serum needed to make dilution- 1 Saline needed to make dilution- 8