A New Lot of APTT Reagent Is Being Evaluated and the Following

question 14

Multiple Choice

A new lot of APTT reagent is being evaluated and the following data points have been gathered to validate the reference range. Values: 32.6, 30.4, 33.7, 29.8, 30.7, 30.4, 32.5, 31.8, 29.6, 33.4, 31.9, 30.7, 32.6, 29.9, 30.9, 31.2, 33.1, 32.9, 28.6, 29.9. Given this information, what is the new reference range?

• A) 26.3-33.1
• B) 30.2-36.8
• C) 28.5-34.1
• D) 29.1-34.9

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Definitions:

Voltage Regulator

A device within an electrical system that maintains the output voltage at a constant level despite changes in load or input voltage.

Field Current

The electric current that flows through the winding of a generator or motor, generating a magnetic field necessary for their operations.

Brushes

Stationary devices used to conduct current to or from a rotor in electrical components such as alternators and motors.

Slip Rings

Stationary devices used to conduct current to an alternator rotor.