What Is Represented by an ECG with a Regular HR

question 54

Multiple Choice

What is represented by an ECG with a regular HR, ectopic P waves, a PR interval that may be normal, and a QRS complex that is normal?

• A)Atrial fibrillation
• B)Supraventricular tachycardia
• C)Sinus tachycardia
• D)Junctional arrhythmia

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Definitions:

Integral Proteins

Proteins that are permanently attached to the membrane, playing critical roles in cell signaling, structure, and transport.

Lipid Bilayer

A double-layered structure formed by lipids that constitutes the main component of all cell membranes, providing barrier and structural integrity to cells.

Hydrophobic Portions

Regions of a molecule that are repelled by water and tend to be nonpolar, often found in lipids and proteins.

Peripheral Membrane Proteins

Proteins that are attached either temporarily or permanently to the outer or inner surface of the cellular membrane, often involved in signaling or structural roles.