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Characteristics of sinus bradycardia include?

A. Sinus bradycardia

 

a. often occurs naturally.

b. is considered abnormal in athletes.

c. is often seen in Wolff–Parkinson–White syndrome.

d. is caused by increased sympathetic stimulation.

B.  Characteristics of sinus bradycardia include

a. PR intervals that change.

b. inverted P waves in lead II.

c. a regular rhythm.

d. wide, bizarre QRS complexes.

C. Sinus tachycardia

a. has mostly the same characteristics as normal sinus rhythm except that it

has a rate of greater than 120 beats per minute.

b. is produced by stimulation of the parasympathetic branch of the

autonomic nervous system.

c. may be caused by ingestion of caffeine or alcohol, smoking, or fever.

d. continues even after the stimulus causing it is removed.

Match the following sinus dysrhythmias with the correct description.

A.  With sinus arrest, the escape mechanism that follows the pause in electrical

 

activity may arise from the

a. SA node.

b. AV junction.

c. ventricles.

d. All of the above.

B. Match the following sinus dysrhythmias with the correct description.

C. Sinoatrial exit block occurs when the

a. impulse originating in the SA node is blocked from reaching the atria.

b. heart rate slows to less than 60 beats per minute.

c. heart rate speeds up and slows down in a cyclical manner.

d. heartbeat ceases completely.

D. Treatment for symptomatic bradycardia includes

a. vagal maneuvers.

b. atropine with a fluid bolus of 250 cc.

c. temporary or permanent pacing.

d. defibrillation.

Why is it important to check for a pulse when there are premature beats in the rhythm?

A. Why is it important to check for a pulse when there are premature beats in the rhythm?

B. Premature atrial complexes

a. are typically preceded by an inverted P9 wave.

b. are always followed by a compensatory pause.

c. have a wide and bizarre QRS complex.

d. may have normal P9R intervals.

C. Describe the effect that a PAC has on the regularity of the underlying

rhythm.

D.  In wandering atrial pacemaker, the pacemaker site shifts between the SA node, atria, and/or

a. Purkinje fibers.

b. ventricles.

c. AV junction.

d. bundle of His.

 

List the treatments for unstable SVT.

A. Your patient is a 67-year-old female with a history of cardiac problems. After

 

attaching her to the monitor, you see a slightly irregular rhythm with normal

QRS complexes, but each P9 wave is different. This rhythm is (LO 13.4)

a. frequent PACs.

b. sinus arrest.

c. sinus dysrhythmia.

d. wandering atrial pacemaker.

B. The heart rate characteristic of atrial tachycardia is __________ beats per

minute. (LO 13.5)

a. 60 to 100

b. 100 to 150

c. 150 to 250

d. 300 to 350 The QRS complexes seen with atrial tachycardia are normally __________

seconds in duration.

a. 0.06 to 0.10

b. 0.10 to 0.20

c. 0.12 to 0.20

d. 0.20 to 0.24

C. List the treatments for stable SVT.

D.  List the treatments for unstable SVT.

….

What dysrhythmia is the patient experiencing?

A. The atrial waveforms associated with atrial fibrillation are __________ and

 

the PR intervals are __________.

a. referred to as saw toothed; variable

b. indiscernible; nonexistent

c. inverted; less than 0.12 seconds

d. dissociated; between 0.12 and 0.20 seconds

B.  Which dysrhythmia is totally irregular?

a. Sinus bradycardia

b. 3rd-degree AV heart block

c. Ventricular tachycardia

d. Atrial fibrillation

C.  Atrial fibrillation has an atrial rate of __________ beats per minute.

a. between 40 and 60

b. between 100 and 150

c. between 250 and 350

d. greater than 350

D.  What dysrhythmia is the patient experiencing?

a. Accelerated junctional

b. Atrial fibrillation

c. Atrial flutter

d. Ventricular tachycardia

Which rhythm may be preceded by an inverted P9 wave?

A.  Which rhythm may be preceded by an inverted P9 wave?

 

a. Atrial flutter

b. Junctional escape rhythm

c. Atrial tachycardia

d. Idioventricular rhythm

B. Match the following types of PJCs with the correct description.

C. In junctional escape rhythm, the pacemaker site is in the

a. SA node.

b. atrial and internodal conduction pathways.

c. AV junction.

d. bundle of His.

D. Accelerated junctional rhythm

a. is regularly irregular.

b. has upright P9 waves in all leads.

c. has normal P9R intervals.

d. has normal QRS complexes.

 

a small area of myocardium that is depolarized early produces a characteristic slurred initial downstroke in the QRS complex.

A. With preexcitation syndromes,

 

a. conduction of the impulse from the atria to the ventricles is delayed in

the AV node.

b. the heart is stimulated to beat faster.

c. wide, bizarre QRS complexes are generated.

d. impulses are conducted through accessory conduction pathways between

the atria and ventricles

B . In WPW,

a. the T wave is inverted.

b. impulses bypass the AV node by traveling from the atria to the ventricles

via the bundle of Kent.

c. a small area of myocardium that is depolarized early produces a

characteristic slurred initial downstroke in the QRS complex.

d. the PR interval is prolonged.

C. PSVT stands for

a. premature ventricular tachycardia.

b. premature atrial tachycardia

c. paroxysmal supraventricular tachycardia.

d. paradoxical supraventricular tachycardia.

Describe how the QRS complexes appear in a rhythm that originates from the ventricles.

A . VF appears on the ECG monitor as having

 

a. an overall pattern that appears irregularly shaped, chaotic, and lacks any

regular repeating features.

b. narrow QRS complexes.

c. electrical signals that are the same height.

d. P waves interspersed between bizarre-looking QRS complexes.

B. With asystole

a. the heart quivers.

b. there is a flat line on the ECG monitor.

c. there are QRS complexes but no P waves.

d. there is an organized rhythm but no corresponding mechanical

contraction of the heart.

D. Describe how the QRS complexes appear in a rhythm that originates from

the ventricles.

Describe when ventricular escape beats will occur.

A.  Describe when ventricular escape beats will occur.

 

B. There is no pulse with VF because the

a. heart is contracting too fast.

b. heart is contracting too slow.

c. heart is not contracting at all.

d. stroke volume is too high.

C. The flat line rhythm that occurred after defibrillation is called

a. asystole.

b. sinus arrest.

c. ventricular arrest.

d. agonal.

D.  The goal of defibrillation is to create __________ and hope that a pacemaker

will awaken and stimulate ventricular contraction.

a. sinus rhythm

b. sinus tachycardia

c. asystole

d. VT1.

 

The result of accessory conduction pathways between the atria and ventricles.

A.  AV heart blocks are

 

a. partial delays or complete interruptions in the cardiac conduction

pathway between the atria and ventricles.

b. early ectopic beats that originate outside the SA node. c. a shifting of the pacemaker site between the SA node, atria, and/or AV

junction.

d. the result of accessory conduction pathways between the atria and ventricles.

B. In 1st-degree AV heart block,

a. the PR intervals are greater than 0.20 seconds in duration.

b. not all the P waves are followed by QRS complexes.

c. the P waves are inverted.

d. the underlying rhythm is slow.

C. 1st-degree AV heart block is considered a/an

a. intermittent block.

b. complete block.

c. consistent delay in conduction.

d. partial block.

D. In 2nd-degree AV heart block, type….