Which of the Following Statements Concerning Q Waves on the ECG

question 12

Multiple Choice

Which of the following statements concerning Q waves on the ECG is most accurate?

• A) Q waves are not a normal finding on the ECG.
• B) The absence of a Q wave is a significant pathophysiological finding.
• C) A Q wave is significant if it is 0.04 or more seconds wide.
• D) A Q wave is significant only in the presence of chest pain.

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Definitions:

Thyroid Gland

An endocrine gland in the neck that secretes hormones regulating growth and metabolism.

Pituitary Gland

A pea-sized gland located at the base of the brain, important in controlling growth, metabolism, and regeneration, often called the "master gland."

Brain

The organ of the central nervous system located in the skull, responsible for coordinating sensory information and directing motor responses; also the center of thought and emotion.

Myxedema

A condition resulting from the hypofunction of the thyroid gland.