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376 Test 2 > Cardiac Dys 1 > Flashcards

Cardiac Dys 1 Flashcards

1
Q

Define P wave

A

P wave represents atrial depolarization

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2
Q

Define P wave

A

P wave represents atrial depolarization

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3
Q

Define QRS complex

A

QRS complex represents ventricular depolarization

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4
Q

Define T wave

A

T wave represents ventricular repolarization

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5
Q

Define U wave

A

U wave represents repolarization of Purkinje fibers, hypokalemia, hypertension, or heart dx

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6
Q

What is normal rage of the PR interval?

A

0.12 - 0.20

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7
Q

Duration of QRS interval?

A
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8
Q

QT interval normal range?

A

0.35 - 0.40

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9
Q

PP interval signifies what?

A

atrial rhythm and rate

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10
Q

RR interval signifies what?

A

ventricular rate/rhythm

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11
Q

Define NSR (normal sinus rhythm)

A

when rhythm originates from the SA node

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12
Q

Define sinus bradycardia

A

same initiation as NSR but the rate falls below 60

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13
Q

Define sinus tachycardia

A

same initiation as NSR but rate is greater than 100

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14
Q

What waveform will vary/change with atrial dysrhythmia?

A

P wave

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15
Q

Define premature atrial contractions

A
  • occurs when atrial tissue gets irritable

- causes are stress, fatigue, anxiety, infection, caffeine, meds

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16
Q

Define atrial fibrillation

A

chaotic/disorganized electrical activity in the atria

17
Q

Define QRS complex

A

QRS complex represents ventricular depolarization

18
Q

Define T wave

A

T wave represents ventricular repolarization

19
Q

Define U wave

A

U wave represents repolarization of Purkinje fibers, hypokalemia, hypertension, or heart dx

20
Q

What is normal rage of the PR interval?

A

0.12 - 0.20

21
Q

Duration of QRS interval?

A
22
Q

QT interval normal range?

A

0.35 - 0.40

23
Q

PP interval signifies what?

A

atrial rhythm and rate

24
Q

RR interval signifies what?

A

ventricular rate/rhythm

25
Q

Define NSR (normal sinus rhythm)

A

when rhythm originates from the SA node

26
Q

Define sinus bradycardia

A

same initiation as NSR but the rate falls below 60

27
Q

Define sinus tachycardia

A

same initiation as NSR but rate is greater than 100

28
Q

What waveform will vary/change with atrial dysrhythmia?

A

P wave

29
Q

Define premature atrial contractions

A
  • occurs when atrial tissue gets irritable

- causes are stress, fatigue, anxiety, infection, caffeine, meds

30
Q

Define atrial fibrillation

A

chaotic/disorganized electrical activity in the atria

376 Test 2 (6 decks)

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