What Is the Criterion of Adequacy Used to Determine the RDA

question 40

Multiple Choice

What is the criterion of adequacy used to determine the RDA for vitamin B12?

• A)Normal neurological function
• B)Low urinary excretion of vitamin B12.
• C)Normal red blood cells
• D)High levels of intrinsic factor

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Definitions:

Ventricular Repolarization

The process by which the heart's ventricles return to their resting state after contraction, indicated by the T-wave in an ECG.

ECG

Electrocardiogram, a test that records the electrical activity of the heart to detect heart problems.

T Wave

A feature on an electrocardiogram (ECG) representing the repolarization of the ventricles of the heart.

R Wave

Part of the QRS complex in an electrocardiogram (ECG) representing ventricular depolarization, which precedes ventricular contraction.