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Diagnostics > EKG part 2 > Flashcards

EKG part 2 Flashcards

1
Q
A

STEMI

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2
Q
A

ST Depression

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3
Q
A

T wave Inversion

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4
Q

Where does the Cardiac Conduction Start?

A

SA node

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5
Q

What does ST depression generally indicate

A

Ischemia

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6
Q

What does T wave inversion mean

A

Previous MI- fairly recent

Damage is done

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7
Q

What does a Q wave look like?

A

O.O4 seconds wide or 1/3 the height of the R wave

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8
Q

How long does it take for a Q wave to show up on an EKG?

A

8-48 hours

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9
Q

When will a Q wave go away on an EKG and what does it mean?

A

It never goes away

Indicates the person has had an MI at some time

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10
Q
A

Q wave on EKG, indicative of an MI either previously or now.

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11
Q

EKG Interpretation?

A

Anterior Septal MI (STEMI)

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12
Q

EKG interpretation?

A

Inferior Wall MI (STEMI)

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13
Q

Axis

A

The average direction of electrical activity during ventricular depolarization

The QRS axis may shift due to phyiscal change in the position of the heart, chamber hypertrophy or conduction block

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14
Q

Who is R axis deviation found in/What causes this?

A

Normal finding in children and tall thin adults

R ventricular hypertrophy

chronic lung disease

Anterolateral MI

L posterior hemiblock

Pulmonary embolus

WPW

ASD/VSD

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15
Q

What can cause a L axis deviation?

A

L anterior hemiblock

Q waves of inferior MI

artificial cardiac pacing

emphusema

hyperkalemia

WPW

Tricuspid atresia

Ostium primum ASD

Injection of contract into left coronary artery

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16
Q

Northwest Deviation

“No man’s Land”

What can it be from?

A

Lead transposition

Pacemakers

Hyperkalemia

Emphysema

Ventricular Tachycardia

17
Q

Normal Axis

A

Lead I up

AVF lead Up

18
Q

Lead I is down

AVF is up

What is the Axis deviation

A

Left finger down

Right finger up

Right axis deviation

19
Q

Lead I up

AVF down

Axis Deviation?

A

Left finger up

Right finger down

Left axis deviation

20
Q

Lead I - down

AVF - Down

Axis Deviation?

A

No fingers are pointing up

No mans land or northwest deviation

21
Q

What is the axis interpretation for this EKG?

A

Possible lead translocation

R axis Deviation

22
Q

What is your axis interpretation of this EKG?

A

L axis Deviation

23
Q

What is your axis interpretation of this EKG?

A

Normal Axis Deviation

24
Q

Sokolow-Lyon Index

A

S in V1 + R in V5 or V6 (whichever is Larger) > or equal to 35mm

R in AVL > or equal to 11 mm

If both are true this is a Left Ventricular Hypertrophy

25
Q

measurment of one little box on an EKG in mm (verticle axis)

26
Q

measurment of 1 big box in mm (verticle axis)

27
Q

Diagnosing R ventricular Hypertrophy on an EKG

A

R axial deviation

R in V1 + S in V5 (or V6) 10 mm

Diagnostics (8 decks)

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