Heart Block Is a Condition in Which the SA Node

question 8

Multiple Choice

Heart block is a condition in which the SA node is properly functioning but the atria and ventricles are contracting out of synch.What part of the heart must not be functioning for this to happen?

• A)The SA node is working extra hard to make the ventricles catch up.
• B)The AV node is not sending signals to the ventricles like it should.
• C)The coronary arteries are not delivering blood to the heart.
• D)The heart valves are allowing blood to flow backwards through the heart.

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Definitions:

Bronchodilators

Medications that relax muscle bands that tighten around airways, thereby easing breathing in respiratory conditions like asthma.

Low-flow Oxygen

A type of oxygen therapy that delivers oxygen at a lower rate, suitable for patients who need supplemental oxygen at a minimal flow.

Chest Tube

A medical device used to remove air, fluid, or pus from the intrathoracic space to prevent or treat a collapsed lung or to drain fluid from around the lungs.

Water Seal Chamber

A component of a chest drainage system that prevents air from entering the pleural space while allowing air and fluids to exit, creating a one-way valve mechanism.