Deck 7: Introducing the Sinus Rhythms

Question 1

A patient is termed ________ when he or she is considered medically asymptomatic.

A) low priority
B) stable
C) borderline
D) critical

Answer 1

B

Question 2

External pacing is also referred to as ________ pacing.

A) transcutaneous
B) supraventricular
C) subcutaneous
D) anterior

Answer 2

A

Question 3

The rhythm in which the SA node discharges impulses at a rate less than 60 is called:

A) normal sinus rhythm.
B) sinus tachycardia.
C) sinus dysrhythmia.
D) sinus bradycardia.

Answer 3

D

Question 4

An "out of place" complex is called:

A) compromise.
B) ectopic.
C) funny looking beat.
D) arrest.

Question 5

The rhythm that occurs when the SA node has generated an impulse that follows the normal pathway through the electrical conduction system is defined as normal sinus:

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

Question 6

Rhythms are classified according to the heart structure or structures in which they begin. This is called:

A) site of origin.
B) normal.
C) paroxysmal.
D) reentry.

Question 7

All of the following are signs of cardiac compromise EXCEPT:

A) hypotension.
B) pale, clammy skin.
C) tachycardia.
D) hypertension.

Question 8

The rhythm in which the SA node discharges impulses at a rate between 100 and 160 is called:

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

Question 9

When the sinus node fails to discharge, the absence of a PQRST interval is noted on the rhythm and is called:

A) sinus arrest.
B) sinus bradycardia.
C) sinus rhythm.
D) sinus dysrhythmia.

Question 10

Which of the following terms indicates "fast"?

A) Brady
B) Tachy
C) Absent
D) Paroxysmal

Question 11

An abnormal heart rhythm is most commonly referred to as a(n):

A) arrhythmia.
B) dysrhythmia.
C) byrhythmia.
D) All of the above

Question 12

The part of the conduction system that is located on the floor of the right atrium is the:

A) SA node.
B) AV node.
C) bundle of His.
D) Purkinje network.

Question 13

Which of the following describes an EKG with a rate of 140?

A) Bradycardia
B) Normal
C) Tachycardia
D) Third-degree block

Question 14

Which of the following is the correct order of the conduction system of the heart?

A) AV node, SA node, bundle of his, Purkinje network
B) Bundle of His, AV node, Purkinje network
C) Purkinje network, bundle of His, AV node, SA node
D) SA node, AV node, bundle of His, Purkinje network

Question 15

The irregular rhythm produced with the P to P intervals and the R to R intervals change with respirations is called:

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

Question 16

The intrinsic firing rate of the AV node is which of the following?

A) 60-100 BPM
B) 40-60 BPM
C) 20-40 BPM
D) <40 BPM

Question 17

The area of the conduction system that is defined as the "gatekeeper" to the ventricles is the:

A) Purkinje network.
B) bundle of His.
C) AV node.
D) SA node.

Question 18

The treatment of sinus tachycardia is aimed at finding and treating the underlying cause.

A) False
B) True

Question 19

The primary pacemaker cell of the heart is the:

A) AV node.
B) bundle of His.
C) Purkinje network.
D) SA node.

Question 20

The part of the conduction system that is located in the septum and in the ventricles is the:

A) SA node.
B) AV node.
C) bundle of His.
D) Purkinje network.