Intro EKG Flashcards

1
Q

V1 and V2 shows?

A

Septal wall MI’s

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2
Q

Describe each layer of the heart

A
Endocardium
Myocardium
Visceral Pericardium
(Pericardial space)
Parietal Pericardium
Pleura- 2 layers with pleura cavity between
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3
Q

Properties of cardiac cell (6)

ACCERR

A

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

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4
Q

atp is made in?

A

Mitochondria

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5
Q

Intercalated Disc outer protective layer

A

Sarcolemma

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6
Q

Sarcoplasmic reticulum

A

Calcium is stored inside

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7
Q

T tubules of intercalated disc

A

?

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8
Q

Myofibrils of intercalated disc

A

Functioning active contracting fiber

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9
Q

2 most common valve problems

A

regurge and prolapse

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10
Q

Right coronary artery

A

15-20%

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11
Q

Circumflex

A

40%

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12
Q

Left coronary artery

A

Most blood circulating

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13
Q

Coronary arteries

A

Circulate 200-250cc’s per minute

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14
Q

Where does coronary blood dump

A

Great cardiac vein

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15
Q

Collateral

A

Anastanomes (sp?)

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16
Q

Location of chemoreceptors

A

Medulla and aortic arch

17
Q

PH of IV bag

A

PH=5.5

could produce hyperchloremic acidosis

18
Q

Parasympathetic heart control

A

Atria

19
Q

Sympathetic heart control

A

Atria and ventricles

20
Q

Normal stroke volume

A

60-100

21
Q

Mean arterial pressure

A

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

22
Q

Ejection fraction

A

55-70%

23
Q

Limb leads are?

A

bipolar- positive and negative

24
Q

Augmented

A

AVR, AVL, AVF

25
Q

V=

A

Unipolar

26
Q

Precodial leads

A

V-leads

27
Q

EKG baseline

A

isoelectric line

28
Q

enlarged P wave

A

> .11 = enlarged atria

29
Q

Types of P waves

A
  1. notched
  2. Inverted- from AV junction
  3. upright/peaked atrial enlargement
  4. diphasic
30
Q

Normal PRI

A

.12-.2

.2 “prolonged”

31
Q

Normal QRS

A

.06 to .10

32
Q

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

A

infarct or dead tissue

33
Q

Ischemia

A

ST depression

34
Q

Injury

A

ST elevation

35
Q

QT interval

A

.36-.44

36
Q

Look at EKG?

A
Rate
Rhythm
Regularity
P Waves
PRI
QRS Wave
T Waves
37
Q

Indications for monitoring

A
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
Q

PRI

A

.12-.2

39
Q

QRS

A

.06-.12