Dysrhythmias Ppt/5 Flashcards Preview

460 - Exam 2 > Dysrhythmias Ppt/5 > Flashcards

Flashcards in Dysrhythmias Ppt/5 Deck (33)
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1
Q

second degree block, type 1 may be warning signal of impending of

A

significant AV conduction disturbance

2
Q

syncope may result from severe bradycardia or periods of asystole

A

third degree block

3
Q

second degree AV block, type 1 - sinus rhythm??

A

Not a sinus rhythm because you don’t have qrs complex after every P wave

4
Q

third degree block drugs are used to

A

temporarily increase HR and support BP before pacemaker insertion

5
Q

second deg type 2 often progresses to

A

third degree and is associated with poor prognosis

6
Q

second degree type 1 aka

A

type 1 wanckebach widened

7
Q

2nd degree block, type 1 - most commonly occurs where

A

at AV node, but can occur in His-Purkinje system

8
Q

sec deg type 2 tx- before the insertion of a permanent pacemaker may involve use of

A

temp transvenous or transcutaneous pacemaker

9
Q

second degree, type 2 almost always occurs when

A

bundle branch block is present

10
Q

usually a result of myocardial ischemia or an inferior MI

A

second degree block, type 1

11
Q

gradual lengthening/widening of PR interval because of prolonged AV conduction times

A

second degree AV block, type 1

12
Q

second degree block, type 2

A

P wave not conducted; no progressive antecedent PR lengthening

13
Q

second degree type 2 - temp drug measures to do what

A

increase HR until pacemaker is available

14
Q

second degree block, type 1 usually a result of

2

A

myocardial ischemia

inferior MI

15
Q

3rd degree block

A

complete heart block; constitutes 1/4 of AV dissociation in which no impulses from atria are conducted to ventricles

16
Q

type 1 wanckebach widened aka

A

second degree AV block, type 1

17
Q

atrium and ventricles are firing but not together; divorce =

A

third degree heart block

18
Q

second degree type 2 - PR interval

A

no widening of PR interval; normal and then nothing, no warning

19
Q

total heart block CO

A

very low

20
Q

second deg type 2 may result in decreased what

A

CO with subsequent hypotension and myocardial ischemia

21
Q

second degree block, type 2 tx if asymptomatic

A

rhythm closely observed with transcutaneous pacemaker on standby

22
Q

drug for second degree type 2

A

atropine

23
Q

second degree block, type 1 tx if symptomatic

2

A

atropine is used to increase HR or pacemaker may be needed

24
Q

P wave not conducted; no progressive antecedent PR lengthening

A

second degree block, type 2

25
Q

2nd degree AV block, type 1 includes

A

gradual lengthening of the PR interval, which occurs because of prolonged AV conduction time

26
Q

second degree type 2 - certain number of impulses from the sinus node are not

A

conducted to the ventricles

27
Q

gradual lengthening of the PR interval, which occurs because of prolonged AV conduction time

A

second degree block, type 1

28
Q

second-degree block, type 1 - what do you see on EKG

A

PR gradual widening until you finally drop QRS complex

29
Q

no widening of PR interval; normal and then nothing, no warning

A

second degree type 2

30
Q

dropping beat with no warning sign

A

second degree type 2

31
Q

third degree block - almost always results in

A

reduced CO with subsequent ischemia and HF

32
Q

PR gradual widening until you finally drop QRS complex

A

second degree block, type 1

33
Q

third degree block tx- temporary what

A

transvenous or transcutaneous pacemaker may be used on an emergency basis in a patient with acute MI