What Activity Is Occurring in the Heart During the Q-T

question 87

Multiple Choice

What activity is occurring in the heart during the Q-T interval on an electrocardiogram (ECG) ?

• A)The atrial cells are undergoing action potentials.
• B)The ventricular cells are repolarizing.
• C)The ventricular cells are undergoing action potentials.
• D)The AV node delay occurs as the action potential spreads from the SA node to the atria to the ventricles.

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Definitions:

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A country in Northern Europe known for its extensive coastline, fjords, and high standards of living.

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The difference between a firm's total revenue and its total costs, including both explicit and implicit costs, reflecting the real profitability of the business.

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