The Reference Interval Is Determined By

The reference interval is determined by:

A) using a standardized reagent to establish the highest and lowest concentrations that can be measured by an instrument or test system.
B) measuring an analyte in samples from a large number of healthy people, using the same instrument or test system.
C) the period of time between the acquisition and testing of a sample.
D) the difference in concentration between the highest and lowest standards used in the standard curve.