About One-Half of All Preventable Deaths in the United States

question 122

Multiple Choice

About one-half of all preventable deaths in the United States can be accounted for by the abuse of __________.

• A)alcohol,tobacco,or illicit drugs
• B)alcohol abuse alone
• C)tobacco abuse alone
• D)illicit drug abuse alone

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Definitions:

ECG

Electrocardiogram, a medical test that measures the electrical activity of the heart to detect and diagnose various heart conditions.

S-T Segment

A portion of the electrocardiogram (ECG) reading that represents the period between the ventricular depolarization and repolarization, significant in diagnosing myocardial damage.

T Wave

A component of the ECG that represents the repolarization, or recovery, of the ventricles during heartbeats.

Atrioventricular Valves

Valves located between the atria and ventricles of the heart that prevent the backflow of blood during contraction.