B4.017 - Prework Label Dysrrhythmias

Question 1

what does this represent and what can cause it

Answer 1

1st degree AV block

PR interval is long, long AV pause

drugs can cause, antiarrhythmics/beat blockers

Question 2

what causes this

Answer 2

atrial flutter “sawtooth”

caused by cyclical depolarizing wave in atria usually 300 bpm

Question 3

what does this represent

Answer 3

ventricualr fibrillation, leads to full cardiac collapse

Question 4

what does this represent

Answer 4

sinus bradycardia

Question 5

what does this represent and what causes this

Answer 5

2nd degree AV block: Mobitz type I

P wave that is not conducting (4th in this pic)

Slowed repolarization of AV-Bundle of HIS tissue

Question 6

what does this represent

Answer 6

monomorphic ventricular tachycardia

wide QRS

regular

all look the same

Question 7

What does this represent

Answer 7

conduction block

Question 8

upper normal limit for length of PR interval

Answer 8

.2 s

5 small boxes

Question 9

how is complete heart block found and treated

Answer 9

high degree of suspicion

bradycardia

pacemaker

Question 10

what does this represent

Answer 10

supraventricular tachycardia (QRS is narrow)

could be atrial flutter, give something to slow down HR to see if there are flutter waves

Question 11

what does this represent

Answer 11

atrial flutter

Question 12

What does this represent

Answer 12

Normal sinus rhythm

Question 13

what does this represent

Answer 13

complete (3rd degree) heart block

complete dissociated between electrical activity in atria and ventricles

Question 14

what does this represent

Answer 14

tachycardia

Question 15

upper limit of normal for QT interval

Answer 15

.44s

Should shorten with tachycardia

Question 16

what is the difference between treatments for Mobitz type I and II

Answer 16

medication for type I, pacemaker for type II

Question 17

what is there a high incidence of in this state

Answer 17

thromboembolic stroke

consider blood thinner/anticoagulant therapy

Question 18

does ventricular fibrillation lead to a pulse

Answer 18

no

Question 19

what causes this

Answer 19

torsade de pointe

unstabel polymorphic ventricular tachycardia

slowed repolatrization of ventricular myocardium and a prologned QT

probably caused by early after depolarizations

Question 20

what is this called and what should you do

Answer 20

asystole

check ECG leads

Question 21

what does this represent

Answer 21

polymorphic ventricular tachycardia

Question 22

upper limit of normal for QRS complex

Answer 22

.12s

3 small boxes

Question 23

What is a conduction block

Answer 23

Cause a delay in normal propagation of depolarizing myocardium.

Question 24

what does this represent

Answer 24

torsade de pointes

Question 25

what does this represent and what is it caused by

Answer 25

atrial fibrillation Irregularly irregular rhythm all RR intervals are different Bag of worms chaotic atrial depolarizations that are non coordinated

Question 26

What does this show and what does that mean

Answer 26

2nd degree AV block Mobitz type II PR interval is consistent until P wave is non conducted, differentiated from type I