When Atrial Fibrillation Occurs Atrial Depolarization Does Not Occur

question 1

Multiple Choice

When atrial fibrillation occurs atrial depolarization does not occur.How is this identified on the ECG tracing?

• A) The are multiple 'P' waves to each 'QRS' complex on the ECG tracing
• B) The 'P' is inverted in lead 2
• C) The 'QRS' complex is irregularly spaced
• D) There is no 'P' wave on the ECG tracing

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Definitions:

Carboxyl Group

A functional group consisting of a carbon atom double-bonded to an oxygen atom and single-bonded to a hydroxyl group, denoted as -COOH in organic compounds.

Prostaglandins

A group of physiologically active lipid compounds having diverse hormone-like effects in animals, derived enzymatically from fatty acids.

Arachadonic Acid

A polyunsaturated omega-6 fatty acid important in the inflammation process and cellular signalling.

Chair Conformation

A stable, puckered conformation of six-membered rings that minimizes torsional strain.