A Condition in Which the Ventricles Are Unable to Pump

question 103

Multiple Choice

A condition in which the ventricles are unable to pump blood efficiently because of rapid, random contraction of cardiac muscle fibers is called

• A) atrial fibrillation.
• B) congestive heart failure.
• C) pulmonary arterial hypertension.
• D) ventricular fibrillation.

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Definitions:

Phenylketonuria

A genetic disorder caused by a deficiency in the enzyme needed to process phenylalanine, leading to harmful levels of the amino acid in the body.

Klinefelter Syndrome

Sex chromosome abnormality in which a male has an extra X chromosome (XXY).

Dominant-Recessive

A pattern of inheritance in genetics where one allele (variant of a gene) masks the effects of another allele.

Huntington's Disease

A genetic disorder that causes the progressive breakdown of nerve cells in the brain, affecting an individual's functional abilities and usually resulting in movement, cognitive, and psychiatric disorders.