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Dysrythmia > Heart rhythms > Flashcards

Heart rhythms Flashcards

(59 cards)

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1
Q

5 small boxes in a strip (to make medium box) equals how long

A

.2 sec

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2
Q

One small box in a strip equals how long?

A

.04 sec

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3
Q

5 medium boxes (25 small boxes) is how long?

A

1 second

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4
Q

How long is a normal PR interval?

A

.12-.2 seconds

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5
Q

how long is the QRS complex?

A

<.12 seconds

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6
Q

how long is the QT interval?

A

<.44 seconds

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7
Q

treatment for sinus tach if asymptomatic?

treatment for sinus Brady?

A

sinus tach: treat the cause

sinus Brady: atropine, transcutaneous pacing

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8
Q

When is atropine contraindicated for treatment of sinus bradycardia?

A

if the pt has suspected inferior wall MI

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9
Q

classification for sinus Brady? (Rate)

A

<60 bpm

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10
Q

classification for sinus tach (Rate)?

A

> 100 bpm

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11
Q

Sinus arrhythmia facts…

A

irregular rhythm
rate is normal
good PR and QRS
occurs with respiration changes
inc with inspiration
dec with expiration

common in young adults and children
no treatment necessary

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12
Q

PAC facts

A

premature p wave occurs, pause may occur after early beat

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13
Q

treatment for PAC

A

if infrequent, no treatment necessary
if frequent, find cause and treat

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14
Q

SVT is used often interchangeably with what phrase?

A

atrial tachycardia

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15
Q

rate for SVT

A

140-250

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16
Q

characteristics of SVT

A

rapid fast rhythm
PR interval abnormal, usually hidden in T wave
QRS normal

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17
Q

What is the treatment for SVT?

A

if stable: adenosine
if unstable: cardiovert

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18
Q

Afib characteristics

A

very irregular rhythm
QRS normal
PRI interval not able to be distinguished

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19
Q

treatment for A fib

A

if stable: meds: ca channel blockers, dig, beta blockers

if unstable: cardiovert

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20
Q

Atrial Flutter characteristics

A

can be regular or irregular rhythm
P waves are flutter waves (saw tooth patterns)

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21
Q

Treatment for Atrial Flutter

A

if stable: meds (ca channel blockers, dig, beta blockers

if unstable: cardiovert

(treatment just like A fib)

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22
Q

Where does junctional rhythm occur?

A

AV node; AV junction

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23
Q

Characteristics of junctional rhythm

A

-rate: 40-60
-P waves are inverted in lead 2
-may occur before, after and hidden in QRS complex
-PR interval is short (<10 seconds)

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24
Q

names and rates of junctional rhythms

Study These Flashcards
A

junctional: 40-60
accelerated junctional: 60-100
junctional tachycardia:>100

25
1st degree heart block characteristics
prolonged PR interval at >.20 seconds regular rhythm p for every qrs
26
treatment for 1st degree heart block
treatment not needed, monitor
27
this dysrhythmia entails: progressive elongation of PR interval until there is a drop in QRS complex and a pause, then is happens again
2nd degree Type 1 (Wenckebach)
28
rate characteristic of 2nd degree type 1 heart block
regular atrial irregular ventricular
29
treatment of Second degree type 1 (Wenckebach) heart block
if unstable: atropine
30
2nd degree type 2 heart block
2 or 3 P waves before most QRS complexes PR interval may be normal or long, remains constant
31
treatment for 2nd degree type 2
TCP
32
third degree heart block characteristics
atria and ventricles are contracting irrespective of their relationship to each other; no relationship between p and qrs waves regular rhythm -p waves can be seen before qrs, before t wave, (marching through each wave)
33
treatment for third degree heart block
TCP
34
what does PVC stand for?
premature ventricular contraction
35
characteristic of PVC
premature beat wide bizarre qrs complex included (wide v shape) can be univocal (same shape) or multifocal)
36
what are the 5 life threatening arrhythmia?
V tach, V fib, Torsades de Pointes, Asystole, Pulseless Electrical Activity
37
Rate of V tach
140-250
38
characteristics of V tach
no discernable P waves Wide even QRS complexes
39
treatment for V tach
if no pulse, call a code MSET (med sure emergency team) CPR Defib Meds if has pulse: antiarrythmic drug, possible cardioversion
40
what lethal arrhythmia is a type of v tach?
torsades de pointes
41
rate of torsades
>250
42
Torsades de pointes characteristics
qrs changes from + to - polarity
43
what is usually the cause of torsades
electrolyte abnormality, prolonged QT interval;
44
treatment for torsades
If no pulse: call code (mset) CPR Defib Antiarrythmic drugs If has pulse: Magnesium 1-2 gram possible cardioversion
45
wavy chaotic baseline compose of irregular waveforms that vary in amplitude and morphology
V fib
46
rate of V fib
0 (pulseless)
47
V fib treatment
Defib
48
any p waves of v fib
none
49
treatment of asystole
call code (meet) cpr epi
50
is systole shockable
NO
51
what is PEA
when electrical impulse shows on monitor but pt has no pulse
52
treatment of PEA
treat like asystole
53
this is when: the heart chamber has failed to respond to a pacing stimulus
failure to capture
54
how does failure to capture look like on a strip?
after a pacer spike, a contraction is not followed as should
55
failure to capture symptoms & treatment
sob, diaphoretic, bradycardic treatment: prep for TCP
56
if vagal maneuver does not work for pt experiencing SVT, what do you do?
administer adenosine
57
treatment for symptomatic SVT
cardioversion
58
this heart rhythm characteristic: p waves are inverted in lead 2
junctional rhythm
59
best interventional treatment for V fib
Defibrillate

Dysrythmia (1 decks)

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