PHYS - EKG Cheat Sheet Flashcards
1
Q
- P wave present
- Positive inferior leads
- Regular Rhythm
A
NORMAL SINUS RHYTHM
2
Q
- No P waves
- Irregular Rhythm
- Rapid rate, usually ventricular
A
ATRIAL FIBRILLATION
3
Q
- P waves present
- Rate of 300bpm
- Saw tooth pattern
- Regular or irregular
A
ATRIAL FLUTTER
4
Q
- Narrow complex
- Rate of 150 bpm
- Regular
A
SVT
SUPRAVENTRICULAR TACHYCARDIA
5
Q
- Wide complex
- Relatively regular
- Rate of 150+ bpm
A
VENTRICULAR TACHYCARDIA
6
Q
- Wide complex
- Very fast
A
VENTRICULAR FIBRILLATION
7
Q
- No P wave
- Can be narrow or wide QRS
- Slow
A
JUNCTIONAL RHYTHM
8
Q
RATE
A
- 300/# of squares between peaks
- Normal 60-100 bpm
- Tachycardia >100 bpm
- Bradycardia <60 bpm
9
Q
AXIS
A
- Normal Positive QRS in Leads I and II
- Right Negative in Lead I (Positive Lead II)
- Left Negative in Lead II (Positive Lead I)
10
Q
- P wave present
- Negative in inferior leads (usually)
- “Early”
A
PREMATURE ATRIAL COMPLEXES
11
Q
- No association with P wave
- Wide QRS complex
- “Early”
A
PREMATURE VENTRICULAR COMPLEXES
12
Q
- PR > 200ms
- 1:1 P:QRS ratio
- No dropped beats
A
FIRST DEGREE AV BLOCK
13
Q
- Progressive prolongation of PR
- Leading to dropped beats
A
2ND DEGREE AV BLOCK - TYPE I
WENCKEBACH
14
Q
- Random dropped beats without prior prolongation of the PR
A
2ND DEGREE AV BLOCK - TYPE II
15
Q
- P waves and QRS complexes are completely dissociated
A
3RD DEGREE AV BLOCK
(COMPLETE HEART BLOCK)
16
Q
- QRS > 120 ms
- QRS positive in V1
A
RIGHT BUNDLE BRANCH BLOCK
17
Q
- QRS > 120ms
- QRS positive in V6 or I,AVR
A
LEFT BUNDLE BRANCH BLOCK
18
Q
- Presence of Q waves
A
- Suggests a prior infarct
- Must be in consecutive leads with a vascular distribution
19
Q
- R wave in V1 or I, AVR of > 11 mV OR
- R wave in V6 + S wave in V2 >= 3.5 mV
A
LEFT VENTRICULAR HYPERTROPHY
20
Q
- ST depression
A
- Ischemia
- Always in inferiolateral leads, regardless of vessels involved
21
Q
- ST elevation
A
- Infarction
- Localizes to the coronary vessel involved
