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Flashcards in Exam 1, lecture slides Unrein Deck (40)
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1

What lead do you look for atrial hypertrophy and what does it look like

V1
diphasic p wave, if first part is larger than R hypertrophy
or single p wave bigger than 2.5mm

2

what leads can also suggest R atrial hypertrophy

II III aVF p waves greater than 2.5 mm height

3

What are signs of left ventricular hypertrophy

>35 mm after adding V1 and V5 together
LAD sometimes

4

what does strain pattern look like on EKG

elevated ST

5

what does R ventricular hypertrophy look like

High R wave in V1-V4 that gets progressively smaller

6

What can a widened QRS complex signify?

BBB

7

which BBB can you NOT Dx a acute MI with

LBB

8

Which BBB can have an anterior or posterior fascicle and how do you know

LBBB
anterior is with LAD
posterior with RAD

9

what do symmetrically inverted T waves mean

ischemia

10

ST depression from ischemia occurs with what scenarios

subendocardial infarction, angina, stress tests

11

Acute ST segment elevation could mean what

transmural infarction

12

What are signs of myocardial necrosis

Q waves, deeper than 1/3 QRS depth. >0.04 Q width

13

What are signs of an inferior MI

elevated ST in II III and aVF

14

what are signs of an anterior MI

V1-V4

15

what are signs of a lateral MI

I, aVL, V5-6

16

what are signs of posterior MI

V1, V2 has a tall R wave and ST depression

17

An ST depression in V1 and V2 means what

Posterior MI

18

What are signs of hyperkalemia

flattened/widened P waves
Widened QRS
Peaked T waves

19

what are sings of hypokalemia

flattened T waves
prominent U waves

20

what are signs of hypercalcemia

shortened QT interval
widened T wave

21

what is the normal PR interval

.2 mm (one small box)

22

what is normal QRS duration

.12

23

What are sings of hypocalcemia

prolonged QT interval
flattened T wave

24

how does hypothermia appear on EKG

severe sinus bradycardia
prolonged PR interval
Widened QRS complex
prolonged QT interval
**extra deflection at end of QRS

25

How do you differentiate eleavated STs from MI and pericarditis

pericarditis has elevated ST in all leads
pericarditis also has PR depression

26

What does the term paced rhythm mean?

sharp depolarizations
unable to interpret anything beyond that it is a paced rhythm
can be atrial, ventricular or AV sequential

27

What are signs of brugada syndrome

EKG with RBBB and persistent ST segment elevation V1-V3

28

what is the normal length of Bazetts formula

0.44 seconds

29

What does a ventricular rhythm look like

no p waves
wide QRS complexes

30

what are bigeminal, trigeminal or quadrigeminal beats

series-pattern of ectopic depolarizations
either atrial or ventricular in origin