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Question 181 / 323
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qualitycontrol-181
DETERMINANT (SYSTEMATIC) ERRORS — The text explains that systematic errors can be classified as CONSTANT or PROPORTIONAL. What is the difference between these two types of systematic error?
A. Constant errors affect only low concentrations; proportional errors affect only high concentrations
B. CONSTANT SYSTEMATIC ERROR: always the SAME DIRECTION AND SAME MAGNITUDE regardless of analyte concentration; PROPORTIONAL SYSTEMATIC ERROR: always occurs in ONE DIRECTION but magnitude changes with concentration
C. Constant errors are random; proportional errors are systematic
D. Both types of systematic error are identical in clinical impact
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