An Extremely Rapid but Regular Heartbeat Is Called

question 4

Multiple Choice

An extremely rapid but regular heartbeat is called:

• A) fibrillation.
• B) sick sinus syndrome.
• C) flutter.
• D) bundle branch block.

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Definitions:

Allergic Reaction

An immune system response to a foreign substance that's not typically harmful to the body, such as pollen, food, or pet dander.

Toxin

A poisonous substance produced within living cells or organisms.

Reproductive Cells

Cells that are involved in sexual reproduction, including sperm and egg cells, carrying genetic information to offspring.

Human Immunodeficiency Virus

A virus that attacks the immune system and can lead to acquired immunodeficiency syndrome (AIDS), a condition in which progressive failure of the immune system allows life-threatening opportunistic infections and cancers to thrive.