If There Is a Complete Block Between the SA Node

question 30

Multiple Choice

If there is a complete block between the SA node and the AV node, how would the ECG be affected?

• A) The P-R interval will be shorter.
• B) The QRS duration will be longer.
• C) There will be much bigger P waves.
• D) The ventricles will stop beating.
• E) The rate of P waves will be faster than the rate of QRS complexes.

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Definitions:

Cartilage

A flexible, rubbery tissue found in parts of the body such as joints, ear, and nose, providing support and cushioning.

Bone

A hard, dense connective tissue that forms the structural elements of the skeleton, providing support, protection, and facilitating movement.

Connective Tissue Proper

A category of connective tissue that includes loose and dense connective tissues, serving to support, bind together, and protect organs.

Fibroblasts

Fibroblasts are the most common type of cells found in connective tissue, producing and maintaining the matrix of collagen and other fibers.