CLSI guidelines notes that "blood sample" and "blood specimen" should be considered different things. Which of the following is the CLSI definition of "specimen"?
A. The total amount of blood in an individual's body, based on weight, and that can be calculated for any size person
B. A portion of a blood sample that has been removed/separated from the original tube after initial processing (centrifugation) and is considered to be identical to all other portions of the original serum, plasma, urine, or cerebrospinal fluid
C. One or more parts (e.g., blood or tissues) taken from a system (the patient's body) and intended to provide information on the system
D. The discrete portion of a body fluid (e.g., blood or urine), breath, hair, or tissue taken for examination or analysis of one or more characteristics (analytes), to determine the character of the patient's body
Answer: D
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