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Cardiopulmonary - Midterm > cardiopulm midterm (2nd half) > Flashcards

cardiopulm midterm (2nd half) Flashcards

1
Q

when is the only time we measure voltage

A

when the pt has had a transplant

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2
Q

when exercising, you should monitor which leads

A

lead II

V5 (precordial lead)

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3
Q

where are the only 2 places you’ll see an inverted T-wave

A

AVR

V1

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4
Q

3 EKG waves

A

P wave

QRS complex

T wave

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5
Q

p wave

A

represents atrial depolarization

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6
Q

QRS complex

A

represents ventricular depolarization

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7
Q

T wave

A

represents ventricular depolarization

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8
Q

pt who presents w/ a U wave in an ECG

A

hypokalemia

cannot treat

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9
Q

U wave will occur after which point of the ECG

A

after the T wave

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10
Q

segments/intervals in an ECG

A

PR interval

QRS interval

RR interval

QT interval

ST segment

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11
Q

what does the PR interval represent

A

delay of impulse from SA to AV node

tells you how long it takes the AV node to repolarize

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12
Q

how many seconds does PR interval normally take to complete

A

.12-.2 s

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13
Q

PR interval lasting longer than .2 s

A

results from a heart block

takes longer to get from SV to AV node

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14
Q

QRS interval

A

represents rate of impulse ventricular depolarization

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15
Q

how long does QRS interval take

A

.04-.09 s

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16
Q

QRS interval lasting longer than 0.09 and 0.12 s could be a result of

A

> .09 = intraventricular conduction delay

> 0.12 = bundle branch block

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17
Q

RR interval

A

determines rate and regularity of rhythm

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18
Q

2 kinds of irregular rhythm

A

regularly irregular

irregularly irregular

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19
Q

regularly irregular

A

irregular rhythm which occurs in a consistent pattern

bigeminy

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20
Q

irregularly irregular

A

no pattern

inconsistent

a-fib or v-fib

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21
Q

QT interval

A

represents the ventricular depolarization and repolarization

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22
Q

how long does the QT interval last

A

0.42 s

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23
Q

ST segment

A

represents initiations of ventricular repolarization

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24
Q

if the ST segment goes up/down more than 2 small boxes

A

ischemia

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25
3 ST segment depressions
upsloping ST segment depression horizontal ST segment depression down sloping ST segment depression
26
upsloping ST segment depression
exercise induced ischemia
27
horizontal ST segment depression
ST segment drops below isoelectric line then continues parallel
28
down sloping ST segment depression
worst of the 3 caused by ischemia/infarct
29
ST segment elevation is caused by
acute MI ST segment elevates above isoelectric line
30
how would a normal sinus rhythm present --> p wave
upright normal in appearance 1 p wave for every QRS interval
31
how would a normal sinus rhythm present --> PR interval
.12-.2
32
how would a normal sinus rhythm present --> QRS interval
WNL 0.04-0.09
33
how would a normal sinus rhythm present --> RR interval
regular
34
how would a normal sinus rhythm present -->rate
60-100 bpm
35
how would sinus bradycardia present --> p wave
upright normal in appearance 1 P wave for every QRS complex
36
how would sinus bradycardia present --> PR interval
0.12-0.2
37
how would sinus bradycardia present --> QRS complex
WNL 0.04-0.09
38
how would sinus bradycardia present --> RR interval
regular
39
how would sinus bradycardia present --> rate
less than 60 bpm
40
how would atrial flutter present
rapid succession of atrial depolarization caused by ectopic focus
41
how would atrial flutter present --> p wave
flutter waves saw tooth more p waves than QRS complexes
42
how would atrial flutter present --> PR interval
cannot measure
43
how would atrial flutter present --> QRS complex
WNL 0.04-0.09
44
how would atrial flutter present --> RR interval
regular
45
how would atrial flutter present -->rate
250-350 bpm
46
pharmaceutical txs for atrial flutter
digoxin verapamil beta blockers cardioversion
47
which of the 3 premature ventricular complexes (PVC) is the worst
coupling PVC cant treat them
48
how would ventricular tachycardia (v-tach) present
series of 3 or more PVCs in a row rapid firing of an ectopic focus medical emergency
49
how would ventricular tachycardia (v-tach) present --> p wave
absent
50
how would ventricular tachycardia (v-tach) present --> PR interval
cannot measure
51
how would ventricular tachycardia (v-tach) present --> QRS complex
wide bizarre looking
52
how would ventricular tachycardia (v-tach) present --> RR interval
regular
53
how would ventricular tachycardia (v-tach) present --> rate
100-250 bpm
54
how would ventricular fibrillation present
erratic quivering of the heart w/ no cardiac output medical emergency
55
how would ventricular fibrillation present --> p wave
absent
56
how would ventricular fibrillation present --> PR interval
cannot measure
57
how would ventricular fibrillation present --> QRS complex
wavy line
58
how would ventricular fibrillation present --> RR interval
irregularly irregular
59
how would ventricular fibrillation present --> rate
1000 .... cannot be determined***
60
which strips can you not tx
atrial flutter V tach V fib all contraindications for PT
61
medical emergencies
V tach V fib
62
more than 2 PVS in a row
V tach
63
what strips are regularly irregular
atrial flutter V tach
64
O2 cut-off for PT
90% - do not exercise below this normal is 95-100%
65
what is the normal partial thromboplastin time
norm: 25-40 >60 contraindicated for PT

Cardiopulmonary - Midterm (3 decks)

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