Chap 6 Ventricular Rhythms Flashcards

0
Q

This is the result of an electrical impulse from a supraventricular site discharging at the same time as an ectopic site in the ventricles

A

Fusion beat

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1
Q

This often follows a PVC and occurs because the SA node is usually not affected by the PVC

A

Compensatory pause

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2
Q

PVCs that look-alike in the same lead and begin from the same anatomic site are called

A

Uniform

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3
Q

Which of the following is a result of an electrical impulse from a supraventricular site discharging at the same time as an ectopic site in the ventricles?

A

Fusion beats

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4
Q

This occurs after a pause in which a supraventricular pacemaker failed to fire.

A

Ventricular escape beat

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5
Q

What exists when three or more ventricular escape beats occur in a row at a rate of 20 to 40 bpm

A

Idioventricular rhythm

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6
Q

This exists when three or more sequential PVCs occur at a rate of more than 100 bpm

A

Ventricular tachycardia

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7
Q

When the QRS complexes of VT are of the same shape and amplitude, the rhythm is called

A

Monomorphic VT

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8
Q

With this rhythm, the QRS complexes vary in shape and amplitude from Beat to Beat, and appear to twist from upright to negative or negative to upright and back, resembling a spindle.

A

Polymorphic VT

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9
Q

This reflects a total absence of ventricular electrical activity

A

Asystole

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