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EKG/ACLS > EKG/ACLS > Flashcards

EKG/ACLS Flashcards

1
Q

P Wave

A

Represents Atrial Depolarization

Normal: Upright and smooth

Abnormal

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2
Q

P wave: Saw tooth pattern

A

Atrial Flutter

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3
Q

No definable P wave

A

Atrial Fibrillation

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4
Q

Inverted P wave

A

Retrograde conduction from the AV node

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5
Q

Notched- biphasic P Wave

A

Atrial Hypertrophy

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6
Q

PR Interval Definition

A

Time of onset from Atrial Depolarization to the onset of Ventricular Depolarization. Ie: the time for the atrial impulse to reach the ventricles.

Measured from the beginning of the P wave to th beginning of the Q (or the R if there is no Q)

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7
Q

Normal PR Interval time

A

0.12-0.20 seconds

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8
Q

Abnormal PR Interval- Prolonged

A

Delayed conduction through the AV node

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9
Q

QRS Complex Definition

A

Ventricular Depolarization

Ie: The spread of the impulse through the ventricular muscle.

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10
Q

Q Wave

A

The first negative deflection of the QRS before the R

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11
Q

R Wave

A

Any positive deflection in the QRS

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12
Q

S Wave

A

Negative deflection after the R wave

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13
Q

Normal QRS complex time

A

0.04-0.12 seconds

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14
Q

Abnormal QRS

A
  • Deep widened Q wave
  • Notched or “rabbit ear” configuration (BBB)
  • Broadened QRS (greater than 0.12 sec: intraventricular conduction defect
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15
Q

ST Segment

A

Early ventricular repolarization

Pause after the QRS

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16
Q

Normal ST Segment

A

Isoelectric

17
Q

Abnormal ST segment: Elevated

A

Indicates myocardial injury

18
Q

Abnormal ST segment: Depressed

A

Indicates myocardial ischemia (spooning-dig)

19
Q

T wave

A

Ventricular Repolarization

20
Q

Normal T wave description

A

Smooth, rounded, larger than a P wave

21
Q

Abnormal T wave: Inverted

A

Myocardial ischemia

22
Q

Abnormal T wave: Flattened or inverted

A

Hypokalemia

23
Q

Abnormal T wave: Tall or peaked

A

Hyperkalemia

24
Q

Abnormal T wave: Notched

A

Pericarditis

EKG/ACLS (1 decks)

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