Question 1

The heart rate during sinus bradycardia is greater than 100.

Accepted Answer

A) True 
 B)False  False

Question 2

The sinus rhythm that has a heart rate greater than 100 is

Accepted Answer

A) sinus rhythm. 
B) sinus bradycardia. 
C) sinus tachycardia. 
D) sinus arrhythmia. 
A) sinus rhythm. 
B) sinus bradycardia. 
C) sinus tachycardia. 
D) sinus arrhythmia. C

Question 3

Atropine is the drug of choice to treat sinus tachycardia.

Accepted Answer

A) True 
 B)False  False

Question 4

Atropine's mode of action is to

Accepted Answer

A) speed up the rate of sinus node firing and speed conduction through the AV node. 
B) speed impulse conduction through the bundle branches and AV node. 
C) slow the rate of conduction through the AV node and slow sinus node firing. 
D) speed sinus node firing and slow AV node conduction. 
A) speed up the rate of sinus node firing and speed conduction through the AV node. 
B) speed impulse conduction through the bundle branches and AV node. 
C) slow the rate of conduction through the AV node and slow sinus node firing. 
D) speed sinus node firing and slow AV node conduction.

Question 5

A condition in which the thyroid gland overproduces thyroid hormones and causes the heart rate,temperature,and blood pressure to rise to dangerous levels is called ________.

Accepted Answer

The answer of A condition in which the thyroid gland...

Question 6

Sinus bradycardia is common among well-conditioned athletes.

Accepted Answer

A) True 
 B)False

Question 7

In which rhythm is an escape beat sometimes seen?

Accepted Answer

A) Sinus rhythm 
B) Sinus bradycardia 
C) Sinus arrhythmia 
D) Sinus arrest 
A) Sinus rhythm 
B) Sinus bradycardia 
C) Sinus arrhythmia 
D) Sinus arrest

Question 8

In sinus rhythms,P waves are found ________ the QRS complexes.

Accepted Answer

The answer of In sinus rhythms,P waves are found ________...

Question 9

Which of the following is an irregular rhythm originating in the sinus node?

Accepted Answer

A) Sinus arrhythmia 
B) Sinus rhythm 
C) Sinus tachycardia 
D) Sinus bradycardia 
A) Sinus arrhythmia 
B) Sinus rhythm 
C) Sinus tachycardia 
D) Sinus bradycardia

Question 10

Sinus block can occur at any heart rate.

Accepted Answer

A) True 
 B)False

Question 11

The most crucial criterion to identifying sinus rhythms is the upright matching P waves in Lead II.

Accepted Answer

A) True 
 B)False

Question 12

Which is TRUE about sinus arrest and sinus exit block?

Accepted Answer

A) Sinus exit block is an irregular rhythm; sinus arrest is regular. 
B) Sinus arrest always ends in an escape beat; sinus exit block doesn't. 
C) Sinus arrest and sinus exit block can both result in decreased cardiac output. 
D) The pause in both sinus exit block and sinus arrest is a multiple of the R-R intervals. 
A) Sinus exit block is an irregular rhythm; sinus arrest is regular. 
B) Sinus arrest always ends in an escape beat; sinus exit block doesn't. 
C) Sinus arrest and sinus exit block can both result in decreased cardiac output. 
D) The pause in both sinus exit block and sinus arrest is a multiple of the R-R intervals.

Question 13

High fever is a common cause of sinus arrest.

Accepted Answer

A) True 
 B)False

Question 14

Sinus arrhythmia is

Accepted Answer

A) a regular rhythm. 
B) an irregular rhythm. 
C) a rhythm that originates in the atria. 
D) a rhythm that originates in the AV junction. 
A) a regular rhythm. 
B) an irregular rhythm. 
C) a rhythm that originates in the atria. 
D) a rhythm that originates in the AV junction.

Question 15

A rhythm with a heart rate less than 60 is ________.

Accepted Answer

The answer of A rhythm with a heart rate less...

Question 16

The heart rate during sinus tachycardia is less than 60.

Accepted Answer

A) True 
 B)False

Question 17

Patients with a heart rate of 45 always show symptoms of decreased cardiac output.

Accepted Answer

A) True 
 B)False

Question 18

A pacemaker is usually needed to treat sinus bradycardia.

Accepted Answer

A) True 
 B)False

Question 19

-In Figure 5,the rhythm shown is

Accepted Answer

A) sinus rhythm. 
B) sinus bradycardia. 
C) sinus tachycardia. 
D) sinus block. 
A) sinus rhythm. 
B) sinus bradycardia. 
C) sinus tachycardia. 
D) sinus block.

Question 20

In sinus block

Accepted Answer

A) the pause is a multiple of the R-R intervals. 
B) there are P waves inside the pause. 
C) all R-R intervals are constant. 
D) the heart rate varies from 100 to 160. 
A) the pause is a multiple of the R-R intervals. 
B) there are P waves inside the pause. 
C) all R-R intervals are constant. 
D) the heart rate varies from 100 to 160.

The heart rate during sinus bradycardia is greater than 100.

The sinus rhythm that has a heart rate greater than 100 is

Atropine is the drug of choice to treat sinus tachycardia.

Atropine's mode of action is to

A condition in which the thyroid gland overproduces thyroid hormones and causes the heart rate,temperature,and blood pressure to rise to dangerous levels is called ________.

Sinus bradycardia is common among well-conditioned athletes.

In which rhythm is an escape beat sometimes seen?

In sinus rhythms,P waves are found ________ the QRS complexes.

Which of the following is an irregular rhythm originating in the sinus node?

Sinus block can occur at any heart rate.

The most crucial criterion to identifying sinus rhythms is the upright matching P waves in Lead II.

Which is TRUE about sinus arrest and sinus exit block?

High fever is a common cause of sinus arrest.

Sinus arrhythmia is

A rhythm with a heart rate less than 60 is ________.

The heart rate during sinus tachycardia is less than 60.

Patients with a heart rate of 45 always show symptoms of decreased cardiac output.

A pacemaker is usually needed to treat sinus bradycardia.

-In Figure 5,the rhythm shown is

In sinus block

Cardiac Anatomy and Physiology

Electrophysiology

Lead Morphology and Placement

Technical Aspects of the EKG

Calculating Heart Rate

How to Interpret a Rhythm Strip

Rhythms Originating in the Atria

Rhythms Originating in the AV Junction

Rhythms Originating in the Ventricles

AV Blocks

How to Interpret a 12-Lead EKG

Myocardial Infarction

Medications and Electrical Therapy

Diagnostic Electrocardiography

Filters

Exam 7: Rhythms Originating in the Sinus Node

The heart rate during sinus bradycardia is greater than 100.

The sinus rhythm that has a heart rate greater than 100 is

Atropine is the drug of choice to treat sinus tachycardia.

Atropine's mode of action is to

A condition in which the thyroid gland overproduces thyroid hormones and causes the heart rate,temperature,and blood pressure to rise to dangerous levels is called ________.

Sinus bradycardia is common among well-conditioned athletes.

In which rhythm is an escape beat sometimes seen?

In sinus rhythms,P waves are found ________ the QRS complexes.

Which of the following is an irregular rhythm originating in the sinus node?

Sinus block can occur at any heart rate.

The most crucial criterion to identifying sinus rhythms is the upright matching P waves in Lead II.

Which is TRUE about sinus arrest and sinus exit block?

High fever is a common cause of sinus arrest.

Sinus arrhythmia is

A rhythm with a heart rate less than 60 is ________.

The heart rate during sinus tachycardia is less than 60.

Patients with a heart rate of 45 always show symptoms of decreased cardiac output.

A pacemaker is usually needed to treat sinus bradycardia.

-In Figure 5,the rhythm shown is

In sinus block

Cardiac Anatomy and Physiology

Electrophysiology

Lead Morphology and Placement

Technical Aspects of the EKG

Calculating Heart Rate

How to Interpret a Rhythm Strip

Rhythms Originating in the Atria

Rhythms Originating in the AV Junction

Rhythms Originating in the Ventricles

AV Blocks

How to Interpret a 12-Lead EKG

Myocardial Infarction

Medications and Electrical Therapy

Diagnostic Electrocardiography

Filters