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Question 302 / 323
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qualitycontrol-302
REFERENCE RANGE — The text discusses the INDIRECT METHOD for establishing reference ranges. What assumption does the INDIRECT METHOD make about clinical laboratory analysis results?
A. The indirect method assumes all laboratory results are from sick patients
B. THE INDIRECT METHOD IS BASED ON THE OBSERVATION THAT THE MAJORITY OF ANALYSIS RESULTS PRODUCED IN THE CLINICAL LABORATORY SEEMS TO BE 'NORMAL'; the assumption is that the peak and shape are not too far from a Gaussian distribution and the peak is composed mainly of 'Normal values'
C. The indirect method assumes equal numbers of normal and abnormal results
D. The indirect method only works for biochemistry tests
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