EKG: Test #4- Chapters 8 & 9 ( questions and Answers )
Cells in the AV junction have_____and can function as a Automaticity
pacemaker.
accelerated rhythms
plasticity
regeneration
automaticity
Which of the following are features of junctional The P waves are inverted.
dysrhythmias? There is a reverse flow of electrical activity.
The P wave can appear before, during, or after the QRS complex.
The P waves are inverted.
The P wave morphology is normal.
The electrical impulses only flow forward.
The QRS complex is absent.
There is a reverse flow of electrical activity.
The P wave can appear before, during, or after the QRS
complex.
Rhythm that would be present if abnormal impulses were Underlying rhythm
ignored and removed from the tracing
Rhythm that occurs when the SA node fails to initiate Junctional escape rhythm
electrical activity, causing a backup pacemaker site to
take over
Extra electrical pathway between an atrium and Wolff-Parkinson-White syndrome
ventricle short-circuits the normal pathway, resulting in
tachycardia
, Lower than normal blood pressure Hypotension
Widening at the base of the QRS complex due to Delta wave
ventricular pre-excitation
Where does a PJC originate? The atrioventricular junction.
The bundle of His.
The atrioventricular junction.
The SA node.
The left ventricle.
Which of the following are criteria for classification of The QRS duration is between the normal limits.
premature junctional complexes? The P wave is inverted.
The rate depends on the underlying rhythm.
The QRS duration is between the normal limits.
The P wave is inverted.
The rate is always tachycardic.
The rate depends on the underlying
rhythm. The rhythm is regular.
AV node and surrounding tissue, including the bundle of AV junction
His
Moving backward Retrograde
An ectopic focus originating above the ventricles in the Supraventricular
atria or junctional region of the heart
The inherent rate of the AV junction is_____beats per 40-60
minute.
40-80
70-100
40-60
60-80
In junctional rhythms, the______waves are inverted. P
S
Q
P
R
If more than four to six PJCs occur over a minute,_____. it may indicate a more serious condition
the patient may experience hypotension
it may indicate a more serious an irregular pulse would be noted
condition the patient may experience
hypotension there are no signs of low
cardiac output the patient may
experience hypertension an irregular
pulse would be noted
Cells in the AV junction have_____and can function as a Automaticity
pacemaker.
accelerated rhythms
plasticity
regeneration
automaticity
Which of the following are features of junctional The P waves are inverted.
dysrhythmias? There is a reverse flow of electrical activity.
The P wave can appear before, during, or after the QRS complex.
The P waves are inverted.
The P wave morphology is normal.
The electrical impulses only flow forward.
The QRS complex is absent.
There is a reverse flow of electrical activity.
The P wave can appear before, during, or after the QRS
complex.
Rhythm that would be present if abnormal impulses were Underlying rhythm
ignored and removed from the tracing
Rhythm that occurs when the SA node fails to initiate Junctional escape rhythm
electrical activity, causing a backup pacemaker site to
take over
Extra electrical pathway between an atrium and Wolff-Parkinson-White syndrome
ventricle short-circuits the normal pathway, resulting in
tachycardia
, Lower than normal blood pressure Hypotension
Widening at the base of the QRS complex due to Delta wave
ventricular pre-excitation
Where does a PJC originate? The atrioventricular junction.
The bundle of His.
The atrioventricular junction.
The SA node.
The left ventricle.
Which of the following are criteria for classification of The QRS duration is between the normal limits.
premature junctional complexes? The P wave is inverted.
The rate depends on the underlying rhythm.
The QRS duration is between the normal limits.
The P wave is inverted.
The rate is always tachycardic.
The rate depends on the underlying
rhythm. The rhythm is regular.
AV node and surrounding tissue, including the bundle of AV junction
His
Moving backward Retrograde
An ectopic focus originating above the ventricles in the Supraventricular
atria or junctional region of the heart
The inherent rate of the AV junction is_____beats per 40-60
minute.
40-80
70-100
40-60
60-80
In junctional rhythms, the______waves are inverted. P
S
Q
P
R
If more than four to six PJCs occur over a minute,_____. it may indicate a more serious condition
the patient may experience hypotension
it may indicate a more serious an irregular pulse would be noted
condition the patient may experience
hypotension there are no signs of low
cardiac output the patient may
experience hypertension an irregular
pulse would be noted
