Which Statement Best Describes Why Clinicians Use a Defibrillator

question 38

Multiple Choice

Which statement best describes why clinicians use a defibrillator?

• A) The ventricles of the heart are so large that only a strong current can make them depolarize, which is needed in order for them to contract and get blood to the body.
• B) The applied current opens up voltage gated calcium channels in the atria causing the heart to begin a new P wave.
• C) The applied current depolarizes all the muscle cells at the same time, returning synchronous electrical activity to the heart.
• D) A defibrillator takes the place of the SA node and must be applied every minute to keep the heart rate normal until it regains its strength and beats on its own.
• E) The applied current repolarizes the cells of the heart, hence resetting the heart for normal rhythm.

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Definitions:

Dividends

Distributions issued by a company to its shareholders, typically originating from the firm's earnings.

Amortization Expense

The cost associated with the gradual write-off of the value of an intangible asset over its useful life.

Business Combination

The process by which two or more companies merge or one company acquires another, pooling their resources and operations.

Straight-Line Amortization

Straight-line amortization is a method of evenly spreading the cost of an intangible asset over its useful life.