CLASSIC LEARNING TEST EXAM WITH COMPLETE QUESTIONS
AND ANSWERS COMPILATION, VERIFIED SOLUTIONS WITH
DETAILED EXPLANATIONS | 2026/2027 UPDATE |GRADED A+
Which of the following statements is true? -
CORRECT|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 -
CORRECT|ANSWER
SDI- standard deviation index
When comparing an instrument to its peer group, which statistic provides the most useful
description of OVERALL IMPRECISION -
CORRECT|ANSWER
CVR
2(2s) -
CORRECT|ANSWER
Detects systematic error
1(3s) -
CORRECT|ANSWER
Detects rondom error
If the light source on an instrument is gradually weakening, it could contribute to what type of error?
-
CORRECT|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 -
, CORRECT|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 -
CORRECT|ANSWER
Accept the run if no error can be detected
Dilution -
CORRECT|ANSWER
Decrease concentration by adding water/solvent
Solute -
CORRECT|ANSWER
Substance being dissolved
Solvent -
CORRECT|ANSWER
The substance in which the solute dissolves in
Ratio -
CORRECT|ANSWER
Comparison of solute to solvent
Example of ratios to dilutions (3/27) -
CORRECT|ANSWER
Dilution- 1/9
Dilution factor- 9
Serum needed to make dilution- 1
Saline needed to make dilution- 8
Tube dilution -
AND ANSWERS COMPILATION, VERIFIED SOLUTIONS WITH
DETAILED EXPLANATIONS | 2026/2027 UPDATE |GRADED A+
Which of the following statements is true? -
CORRECT|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 -
CORRECT|ANSWER
SDI- standard deviation index
When comparing an instrument to its peer group, which statistic provides the most useful
description of OVERALL IMPRECISION -
CORRECT|ANSWER
CVR
2(2s) -
CORRECT|ANSWER
Detects systematic error
1(3s) -
CORRECT|ANSWER
Detects rondom error
If the light source on an instrument is gradually weakening, it could contribute to what type of error?
-
CORRECT|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 -
, CORRECT|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 -
CORRECT|ANSWER
Accept the run if no error can be detected
Dilution -
CORRECT|ANSWER
Decrease concentration by adding water/solvent
Solute -
CORRECT|ANSWER
Substance being dissolved
Solvent -
CORRECT|ANSWER
The substance in which the solute dissolves in
Ratio -
CORRECT|ANSWER
Comparison of solute to solvent
Example of ratios to dilutions (3/27) -
CORRECT|ANSWER
Dilution- 1/9
Dilution factor- 9
Serum needed to make dilution- 1
Saline needed to make dilution- 8
Tube dilution -
