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Diagnostics > EKG > Flashcards

EKG Flashcards

1
Q

How much time is one square on an EKG?

A

0.04 sec

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2
Q

How much time is in 5 squares or one block of an EKG

A

0.2 sec

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3
Q

What does the EKG strip represent vertically

A

Voltage

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4
Q

Are the limb leads unipolar or bipolar?

A

Bipolar (positive and negative pole)

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5
Q

Are the chest leads unipolar or bipolar?

A

Unipolar

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6
Q

On the EKG strip the chest leads are shown by what letter

A

V

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7
Q

R arm is always what polarity

A

Negative

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8
Q

L leg is always what polarity

A

Positive

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9
Q

Left arm is always what polarity

A

It switches and can be either negative or positive

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10
Q

If electricity moves towards a positive pole we like to say we get a_____ _______?

A

Positive Deflection

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11
Q

The QRS below the isoelectric line means that the electricity is moving

A

away from the positive pole (negative deflection)

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12
Q

Should we have a positive or a negative deflection in lead I

A

Positive

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13
Q

Should we have a positive or a negative deflection in lead II

A

Positive

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14
Q

Should we have a positive or a negative deflection in lead III

A

Positive

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15
Q

Should we have a positive or a negative deflection in AVR

A

Negative

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16
Q

If AVR has a positive deflection, what does that tell me?

A

Probably flipped limb leads or

Defect in electrical activity

17
Q

Where is V1 placed

A

R side of sternum, 4th intercostal space

18
Q

Where is V4 placed

A

L side of sternum 5th intercostal space, mid clavicular line

19
Q

Should we have a positive or a negative deflection in V1

A

Negative

20
Q

Should we have a positive or a negative deflection in V4, V5, V6

A

Positive

21
Q

What part of the heart is represented by V1, V2

A

Septal

22
Q

What part of the heart is represented by V3, V4

A

Anterior

23
Q

What part of the heart is represented by V5, V6

A

Lateral

Diagnostics (8 decks)

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