A Patient Has Been Admitted After the Insertion of a Pacemaker

question 5

Multiple Choice

A patient has been admitted after the insertion of a pacemaker because of bradycardia. She asks what third-degree heart block is, and the nurse replies

• A) "Coronary blood vessel occlusion causing slow contraction of the right ventricles."
• B) "Sclerosis of cardiac valves causing slow pulse."
• C) "A defect in AV junctions slows and impairs conduction of impulses from the SA node to the ventricles."
• D) "Increased pressure in the pulmonary vessels."

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Definitions:

Surplus Amount

The excess of supply over demand in a market, resulting in downward pressure on prices.

Consumer Surplus

The discrepancy between what consumers are ready and capable of paying for a product or service and the actual amount they end up paying.

Price Falls

A decrease in the market price of goods or services, often due to increased supply, reduced demand, or other market dynamics.

Existing Buyers

Consumers or businesses that have previously purchased goods or services from a company.