An Abnormally Wide (More Than 1

question 3

Multiple Choice

An abnormally wide (more than 1.0 msec) QRS complex is characteristic of

• A) paroxysmal atrial tachycardia.
• B) supraventricular tachycardia.
• C) junctional escape rhythm.
• D) premature ventricular complexes.

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Definitions:

Skeletal Rearrangement

A molecular process in which a molecule's skeletal structure undergoes a reorganization, changing its connectivity without altering the formula.

Markovnikov Addition

A rule in organic chemistry that describes the outcome of addition reactions, specifically that hydrogen is added to the carbon with the greatest number of hydrogens in an unsaturated hydrocarbon.

Skeletal Rearrangement

A type of organic reaction where the carbon skeleton of a molecule is rearranged to give a structurally different molecule.

Radical Intermediate

A highly reactive species with unpaired electrons formed during some chemical reactions.