Final Part 2

Question 1

literally means without rhythm and it is used to denote any abnormal rhythm

Answer 1

arrhythmia

Question 2

define arrhythmia

Answer 2

An arrhythmia is an abnormal rhythm

Question 3

define depolarization

Answer 3

Depolarization occurs in the 4 chambers of the heart first the atria and then both ventricles. The SA Node on the wall of the right atrium initiates depolarization in the right and left atria, causing contraction which is symbolized by the P wave on an electrocardiogram

Question 4

causing contraction

Answer 4

depolarization

Question 5

the term regular in cardiac monitoring indicates

Answer 5

indicates a rhythm of constant rate.

Question 6

A P-wave basically is

Answer 6

depolarization passong rapidly through the atrial myocardium produces the P wave on a EKG

Question 7

A QRS complex is produced by what on a EKG

Answer 7

ventricular depolarization

Question 8

When the ventricular myocardium depolarizes it produces a

Answer 8

QRS complex on the EKG

Question 9

A U wave basically is

Answer 9

The final phase of Purkinje depolarization which may record a small hump, the U wave following the T wave on a EKG.

Question 10

overdrive suppression

Answer 10

allows the automaticity center with the fastest rate to be the dominant pacemaker. NO competition

Question 11

allows the automaticity center with fastest rate to be the dominant pacemaker (no competition)

Answer 11

SA Node overdrive suppression

Question 12

Rhythms that lack a constant duration between paced cycles are said to be

Answer 12

irregular

Question 13

What are irregular rhythms

Answer 13

rhythms that lack a constant duration between paced cycles

Question 14

The term irregularly irregular describes

Answer 14

an old designation that describes an irregular and chaotic rhythm that has not predictable recurring pattern

Question 15

When is the term parasystolic said

Answer 15

When automaticity focus has entrance block it is said to be parasystolic the focus paces but can’t be overdrive-supressed

Question 16

the focus paces but can’t be overdrive-supressed

Answer 16

parasystolic

Question 17

an irregular rhythm normal rate range, the pacemaking activity wanders from the SA Node atrial foci

Answer 17

Wandering Pacemaker

Question 18

Define a Wandering Pacemaker

Answer 18

it is a irregular rhythm produced by the pacemaker activity wandering from the SA Node to nearby atrial automaticity foci. Produces cycle length variation as well as variation in the shape of the “P” waves. The overall rate is within normal range

Question 19

P’wave shape varies, atrial rate less than 100 irregular ventricular rhythm

Answer 19

wandering pacemaker

Question 20

cycle lengths vary, P wave morphology (shape) varies as the pacemaking center moves

Answer 20

Wandering Pacemaker

Question 21

MAT

Answer 21

Multifocal Atrial Tachycardia

Question 22

entrance block

Answer 22

parasystole

Question 23

having more than one focus

Answer 23

multifocal

Question 24

An rhythm of patients with COPD, heart rate is over 100 bpm, P’ waves of various shapes, since three or more atrial foci are involved

Answer 24

MAT— Multifocal Atrial Tachycardia

Question 25

a rhythm sometimes associated with digitalis toxicity in patients with heart disease

Answer 25

MAT— Multifocal Atrial Tachycardia

Question 26

Is caused by continuous rapid-firing of multiple atrial automaticity foci, no single implies depolarizes the atria completely, an only an occasional, random atrial depolarization reaches the AV Node tone conducted to the ventricles: this produces an irregular QRS rhythm.

Answer 26

atrial fibrillation

Question 27

Describe Atrial Fibrillation

Answer 27

it is an irregular rhythm, continuous chaotic atrial spikes, irregular ventricular rhythm

Question 28

not an arrhythmia of healthy young people, results of multiple “irritable” atrial foci, suffering from entrance block, pacing rapidly

Answer 28

Atrial Fib

Question 29

no single impulse completely depolarizes both atria, there are no P wavs, just a series of erratic spikes on EKG

Answer 29

Atrial Fib

Question 30

has an irregular rhythm in which we see discernible P waves, P waves are not identical, the rate does not gradually increase, the rate is less than 100, P waves are of different shapes

Answer 30

Wandering Pacemaking