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Question 279 / 323
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qualitycontrol-279
ANALYTICAL VARIABLES — The text lists SOURCES OF VARIATION in the analytical phase. Which of the following is listed as a source of analytical variation?
A. Patient's fasting status before blood collection
B. SELECTION OF INACCURATE METHODS, SPECIMEN MIX-UP, INSTRUMENTS WITH POOR PRECISION, UNCALIBRATED INSTRUMENTS, INCORRECT VOLUME OF SPECIMENS, AND PRESENCE OF INTERFERING SUBSTANCE IN THE SPECIMENS
C. Delayed specimen transport from collection center
D. Incorrect patient identification on the request form
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