dysryhthmias Flashcards

common types (43 cards)

1
Q

normal sinus rhythm rate

A

60-100 bpm

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2
Q

normal sinus rhythm p wave

A

present, upright, 1 before each qrs

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3
Q

normal sinus rhythm PR interval

A

.12-.20 seconds

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4
Q

normal sinus rhythm qrs duration

A

.04-.12

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5
Q

sinus bradycardia rate

A

<60 bpm

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6
Q

sinus bradycardia P wave

A

presen, upright, 1 before each qrs

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7
Q

sinus bradycardia pr interval

A

.12-.20 seconds

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8
Q

sinus bradycardia qrs duration

A

.04-.12 seconds

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9
Q

when do u see sinus bradycardia? (5)

A

athletes, MIs, hypothermia, head injury, vagal stimulation

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10
Q

sinus tachycardia

A

> 101-160 bpm

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11
Q

when do you see sinus tachycardia (6)

A

exercise, anxiety, hyperthermia, caffeine, CHF, hyperthyroidism

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12
Q

sinus arrhythmia rhythm

A

irregular, 60-100 BPM may be slower

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13
Q

when do you see sinus arrythmia (2)

A

children, variation based on respiration– speeds w/ inspiration, slows w/ expiration

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14
Q

Why would you have sinus pause/ arrest

A

intermittent, momentary failure of SA node firing, increased vagal stimulation, excess digitalis

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15
Q

how many seconds for sinus arrest?

A

=/.> 3 seconds

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16
Q

premature atrial contractions causes (5)

A

irritablity of atria caused by infection, ischemia, inflammation, tension, caffeine

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17
Q

where is p wave in premature atrial contraction?

A

before QRS, buried in preceding T wave

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18
Q

where is p wave in atrial tachycardia

A

buried preceding t wave

19
Q

what is atrial tachycardia rate?

A

151-120 bp w/ difficult to measure PR interval

20
Q

what causes atrial tachycardia?

A

irritability of atria, ischemia, digoxin toxicty, paroxysmal (sudden onset)

21
Q

what is rhythm of atrial flutter?

A

usually regular, could be irregular when conduction ratio varies

22
Q

what is atrial tachy rate?

23
Q

atrial flutter rhythm

A

usually regular, can be irregular whenconduction ratio varies

24
Q

what is atrial flutter rate?

25
where is p wave in atrial flutter?
flutter waves, saw tooth configuration.
26
Afib P wAVES
FIBRILLATORY WAVY BASELINE, NO CLEAR P WAVE
27
what causes aFib
multiple ectopic atrial foci, CHF, valvular disease, controlled vs uncontrolled ventricular rate
28
where is supraventricular tachycardia p wave
hidden in Twave, buried in qrs
29
umbrella term to describe a rapid, regular, rhythm w/ a narrow qrs
supraventricular tachycardia
30
what heart blocks warrant pacing?
2nd degree type 1&2 if symptomatic, 3rd degree if symptomatic
31
what is TX for Vtach?
defibrillator
32
what is TX for asystole
CPR
33
TX for sinus tachycardia
treat cause ie dehydration etc
34
TX for bradycardia
atropine (symptomatic); pacemaker
35
TX for Afib
diltiazem, amiodarone
36
TX for supraventiculare tachycardia
vagal maneuvers, adenosine, cardioversion
37
Describe Vtach and onset
sudden, 4+ PVCs, ventricular irritability, PR interval is not measurable and QRS is wide and bizarre. No Pwave present
38
Discuss VFIB
rhythm irregular, no P wave, no rate, pr interval not measurable, no qrs or very chaotic.
39
what does vfib mean?
cardiac arres, lethal dysrhythmia
40
what are lethal dysrhythmias
VFIB, Asystole,AIVR
41
what causes PVCs
hypoxia, hypokalemia, MI
42
"C:\Users\andre\OneDrive\Pictures\Screenshots\atrial flutter.png"
a flutter
43