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H. Mark the underlined word or words in the following statements either true or false
any false statements.
1. Heart failure occurs when the ventricles of the heart are unable to contractic
tively and blood pools in the heart.
2. If the left ventricle fails in heart failure, edema occurs.
3. If the right ventricle fails in heart failure, an abnormal accumulation of serous fluid
will occur in the abdominal cavity.
4. In congestive heart failure, there is edema of the lower extremities and treatment is
to use anticoagulants.
5. Mitral valve prolapse is due to the improper closing of the valve between the left atria
and left ventricle.
6. A heart block or conduction defect occurs when the conduction system between the
SA node and the AV node is disrupted.
7. First-degree heart block is characterized by a pattern of only every second, third, or
fourth impulse being conducted to the ventricles.
8. One form of first-degree heart block is characterized by a momentary delay at the SA
node before the impulse is transmitted to the ventricles.
9. Third-degree heart block is characterized by no impulse carried over by the SA node.
10. The atria beat 72 times per minute whereas the ventricles contract independently.
beating at about half the atria rate per minute; this occurs in third-degree heart
block.