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34 Cards in this Set
- Front
- Back
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A wide P wave is indicative of _
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left atrial abnormality
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A tall P wave is indicative of _
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right atrial abnormality
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A normal q wave is _ seconds. An abnormal q wave (wider/deeper) indicates _
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>.03 seconds
indicates Scar tissue (dead tissue) |
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A narrow qrs complex could be due to _ or _
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Right Ventricular hypertrophy, or posterior MI
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T wave inversion is indicative of _
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ischemia
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The normal PR interval is _ - _ seconds.
When it is a longer interval, what is indicated? When it is shorter it is called _, and an occur in _ |
.12-.20 s
1st degree block > .20 Preexcitation <.12, as in WPW |
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ST elevation indicates _
ST depression indicates _ |
an acute MI (3-5 days) --> Injury
ischemia |
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ST scooping is indicative of _
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digoxin toxicity
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The QT interval represents the _, and a good indicator of _
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duration of ventricular systole
repolarization |
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The PR interval is measured from the (beginning/end) of the P wave to the (beginning/end) of the R wave
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Beginning, beginning
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The ST segment is measured from the (beginning/end) of the S wave to the (beginning/end) of the T wave
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end (of QRS)
beginning of T |
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The Q T Interval is measured from the (beginning/end) of the QRS segment to the (beginning/end) of the T wave
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Beginning
End (Includes both QRS complex and T wave) |
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A normal QT interval is _-_ seconds.
Less than this could mean _ Greater than this could be due to_ |
.36-.45w
hypercalcemia <.36 Hypocalcemia, low K, low Mg >.45 (could be d/t drugs, starvation, prolonged QT, surgery) |
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Regarding rate, the line between big blacks lines is _ seconds, therefore smalled seconds are _
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.20 seconds
.04 seconds |
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Regarding rate, if there was 2 lines between each QRS, the approximate rate would be _
3 line? |
150 bpm
100 bpm |
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Regarding rate, if there was 4 lines between each QRS, the approximate rate would be _
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75 bpm
60 bpm |
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What are the different types of regular rhythm?
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Normal, Atrial, Junctional Ventricular
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After determining that you have a regular rhythm, what is the next step you should look at?
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P waves
Are there P waves? Are they normal (axis) |
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Regular rhythm, with a p wave present for each QRS complex, but the P axis is abnormal
What rhythm is this? |
Atrial
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Regular rhythm, with no P waves present, QRS complex is narrow. What is the rhythm?
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Junctional
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Regular rhythm with no P wave and wide QRS, what is the rhythm?
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Ventricular
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On ECG you see continuous atrial spike, irregular ventricular rhythm, no discernable p waves, irregular qrs. What is the rhythm?
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Atrial Fibrillation
(Irregular) |
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How would you suspect a Atrial rhythm to present on an ECG?
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Regular rhythm with abnormal P axis, but there is a P wave for each qrs
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How would you suspect a Junctional rhythm to present on an ECG?
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Regular rhythm, with No P wave, (and narrow QRS)
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How would you suspect a Ventricular rhythm to present on an ECG?
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Reg Rhythm No P wave + Wide QRS
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Irregular qrs, but you do see p waves before each rhythm, Atrial rate > 100
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Multifocal Atrial Tachycardia
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When the PR interval is constantly changing what condition is this?
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3rd degree AV block
There is no association between atrium and ventricle, QRS interval is slower than p waves |
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A Mobitz I second degree block : What would you see on an ECG?
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Every once in a while a qrs is missed, the PR interval slowly increases.
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What would an ECG show for a Mobitz II second degree block?
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more ps: qrs all the time (ie 3:1)
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A first degree AV block will show what on an ECG?
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PR interval >.,2 seconds, but every beat still gets through
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Problems in Leads I, II and AvL, where is the problem?
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Lateral Left Ventricle
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If an MI occured in the lateral left ventricle, what leads would show abnormalities?
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I, II, AvL
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If an MI occured in the Interior portion of the heart, what leads would you expect to be affected?
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II, III, and AvF
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Problems in II, III, AvF, where is the problem
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Interior
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