Match Each of the Following Components of the ECG Graph

question 15

Multiple Choice

Match each of the following components of the ECG graph cycle with its definition.
-Q-T interval

• A)Represents the time interval from the beginning of ventricular depolarization to the end of repolarization of the ventricles
• B)Represents the electrical recovery of the ventricles
• C)Represents the contraction of the ventricles
• D)Represents the time from the end of ventricular depolarization to the beginning of repolarization of the ventricles
• E)Represents the contraction of the atria
• F)Represents the time from the end of atrial depolarization to the beginning of ventricular depolarization
• G)Represents the time from the beginning of atrial depolarization to the beginning of ventricular depolarization
• H)Represents the period of time when the heart rests

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Definitions:

Degrees of Freedom

The number of independent values or quantities that can vary in an analysis without violating any constraints.

Mean

The arithmetic average of a set of values, calculated by summing up all the values and then dividing by the number of values.

F Distribution

A probability distribution that arises in the analysis of variances for comparing sample variances or testing the hypothesis of equal variances, used primarily in ANOVA.

Degrees of Freedom

The number of independent values or quantities which can be assigned to a statistical distribution or equation, typically affecting the shape of the distribution.