How Is the Reference Rage of an Assay Determined

question 9

Multiple Choice

How is the reference rage of an assay determined?

• A) By testing 100-150 known standards and determining the range that runs from the lowest value to the highest value
• B) By testing 100-150 specimens that represent the laboratory's patient population and determining the range that runs from 2 SD below the mean to 2 SD above the mean
• C) By testing 100-150 specimens that represent the laboratory's patient population and ordering the values from lowest to highest with the lowest and highest values representing the range
• D) None of the above

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Definitions:

Monocline

A geological fold in which all strata are inclined in the same direction, creating a step-like feature in the landscape.

Anticline

A type of fold in rock layers that arches upwards, with the oldest layers at the core of the fold.

Horsts And Grabens

Geological structures formed by the movement of the Earth's crust, where a "horst" is an elevated block surrounded by faults and a "graben" is a depressed block bordered by faults.

Normal Faults

Cracks in the Earth's crust where one block of rock drops down relative to another due to extensional forces.