The Reference Interval Is Determined By

question 8

Multiple Choice

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.

---

Definitions:

Dextrin

A group of low-molecular-weight carbohydrates produced by the hydrolysis of starch.

Sieve Tube Elements

Cells that conduct dissolved sugar in the phloem of flowering plants.

Companion Cells

Specialized cells found in the phloem of plants that support the function of sieve tube elements by aiding in nutrient transport and metabolic processes.

Specialized Cells

Cells that have developed unique structures and functions to perform specific tasks within an organism.