Intro EKG Flashcards Preview

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Flashcards in Intro EKG Deck (39):
1

V1 and V2 shows?

Septal wall MI's

2

Describe each layer of the heart

Endocardium
Myocardium
Visceral Pericardium
(Pericardial space)
Parietal Pericardium
Pleura- 2 layers with pleura cavity between

3

Properties of cardiac cell (6)
ACCERR

Automaticity- Initiates Impulse
Conductivity- Receive and Conduct
Contractility- Shortening/Contracting
Excitability- Responds to Outside Stimuli
Rhythmicity- Regularity of Impulses
Refractoriness- Period in which cell not responsive

4

atp is made in?

Mitochondria

5

Intercalated Disc outer protective layer

Sarcolemma

6

Sarcoplasmic reticulum

Calcium is stored inside

7

T tubules of intercalated disc

?

8

Myofibrils of intercalated disc

Functioning active contracting fiber

9

2 most common valve problems

regurge and prolapse

10

Right coronary artery

15-20%

11

Circumflex

40%

12

Left coronary artery

Most blood circulating

13

Coronary arteries

Circulate 200-250cc's per minute

14

Where does coronary blood dump

Great cardiac vein

15

Collateral

Anastanomes (sp?)

16

Location of chemoreceptors

Medulla and aortic arch

17

PH of IV bag

PH=5.5
could produce hyperchloremic acidosis

18

Parasympathetic heart control

Atria

19

Sympathetic heart control

Atria and ventricles

20

Normal stroke volume

60-100

21

Mean arterial pressure

Pressure needed to perfuse the coronary arteries (60-70)

22

Ejection fraction

55-70%

23

Limb leads are?

bipolar- positive and negative

24

Augmented

AVR, AVL, AVF

25

V=

Unipolar

26

Precodial leads

V-leads

27

EKG baseline

isoelectric line

28

enlarged P wave

>.11 = enlarged atria

29

Types of P waves

1. notched
2. Inverted- from AV junction
3. upright/peaked atrial enlargement
4. diphasic

30

Normal PRI

.12-.2
.2 "prolonged"

31

Normal QRS

.06 to .10

32

q wave >.04 or > 25% height of R wave =

infarct or dead tissue

33

Ischemia

ST depression

34

Injury

ST elevation

35

QT interval

.36-.44

36

Look at EKG?

Rate
Rhythm
Regularity
P Waves
PRI
QRS Wave
T Waves

37

Indications for monitoring

Chest pain
Abdominal pain in cardiac age patient
Burns
Trauma
Near drowning
Or any patient you feel needs a monitor
SOB
Syncope
Irregular pulse
Altered LOC
Shock
CPR

38

PRI

.12-.2

39

QRS

.06-.12