Dsae 1415, Sec 4, Review

Front 1

1.How does the SA node relate to normal sinus rhythm?

Back 1

~ “Pacemaker” of the heart, initiates electrical pulse

~ Located on the roof of the right atrium (near the IVC)

~ P wave on the ECG

~ Rate of 60 bpm-100 bpm

~ Causes atrial contraction

~ If the SA node fails, other pacemakers can take over (AV node or Purkinj

Front 2

2.Where does a ventricular premature beat originate?

Back 2

~ Premature ventricular contraction

~ Wide QRS complex

~ Not proceeded with a by a P wave

~ Production in the ventricles

~ Extra beats that begins in one of the ventricles

Front 3

3. What is the heart’s natural pacemaker?

Back 3

Sinoatrial Node

Front 4

4.Identify characteristics of sinus tachycardia.

Back 4

~ HR: >100 bpm

~ Normal rhythm

~ Normal QRS

Front 5

5.Identify characteristics of sinus bradycardia.

Back 5

~ HR <60 bpm

~ Regular rhythm

~ Medications that can cause

bradycardia: beta blockers, calcium blockers, and digoxin

~ Well-conditioned athletes can have bradycardia (normal)

Front 6

Which indicates normal sinus rhythm?

Back 6

SA node is the pacemaker

Front 7

Which statement is true?

Back 7

The electrical signal fires first then heart reacts mechanically

Front 8

In a normal individual what is occurring during ivct phase

Back 8

~ ⬆️ LV pressure

~ valves are open

Front 9

Where does The ventricle premature beat originate?

Back 9

The ventricles

Front 10

Heart's natural pacemaker?

Back 10

SA node

Front 11

Which delays electrical impulses in order to a enable the Atria to deliver blood to ventricles?

Back 11

AV node

Front 12

Ventricular diastole is the event represented on which EKG wave?

Back 12

T wave

Front 13

What three phases represent ventricular diastole, in order?

Back 13

~ rapid early filling

~ diastasis

~ atrial systole

Front 14

Atrial systole is considered a part of _____?

Back 14

Late ventricular diastole

Front 15

The time in between AV closure and semi-lunar valve opening is termed?

Back 15

IVCT

Front 16

Sinus rhythm with a heart rate of

> 100

Back 16

Sinus tachycardia

Front 17

Sinus bradycardia is a heart rate of ?

Back 17

< 60 bpm

Front 18

Irregular atrial ectopic rate of

240 - 360 bpm is most likely?

Back 18

Atrial flutter

Front 19

A very fast irregular atrial rhythm with irregular ventricular response describes?

Back 19

A-fib

Front 20

Characteristics of a complete heart block on EKG?

Back 20

Absence of P wave

Front 21

EKG to write has a swooping ST segment due to?

Back 21

Digitalis overdose

Front 22

The EKG has a peak st-segment due to?

Back 22

Hyperkalemia

Front 23

EKG to the right is dangerous because of ?

Back 23

~ Low cardiac output

~ V-fib

Front 24

The absence of P wave in excess of 100 BPM?

Back 24

V-tach

Front 25

Diagram to the right illustrates?

Back 25

SA block

Front 26

The biphasic P wave shown in V1 is due to?

Back 26

Atrial enlargement

Front 27

ECG to the right shows?

Back 27

Sinus tachycardia

Front 28

A normal QRS segment should be ____ or less?

Back 28

0.12 MS

Front 29

Electrical ventricular diastole is depicted in which ECG wave?

Back 29

T wave

Front 30

The P wave on ECG waveform represents?

Back 30

Electrical atrial systole

Front 31

R - R interval

Back 31

6

Front 32

ST segment?

Back 32

3

Front 33

QRS complex?

Back 33

2

Front 34

PR intervals?

Back 34

1

Front 35

QT segment?

Back 35

4