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ECG > part 1 > Flashcards

part 1 Flashcards

1
Q

0.12-0.2

A

PR interval

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2
Q

How many small boxes is the PR interval?

A

3-5

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3
Q

depolarization of the atria

A

PR interval

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4
Q

0.04-0.12

A

QRS interval

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5
Q

How many small boxes is the QRS?

A

1-3

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6
Q

ventricular depolarization

A

QRS

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7
Q

Time it takes for de and repolarization of ventricles to occur

A

QT interval

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8
Q

HR 150-220

regular or irregular

A

Paroxysmal Supraventricular Tachycardia

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9
Q

-Comes from above the bifurcation of the bundle of His

A

paroxysmal supraventricular tachycardia

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10
Q

What are the s/s and tx of paroxysmal supraventricular tachycardia?

A
  • hypotension, duspnea, angina

- vagal stimulation, valsalva, cough, IV adenosine

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11
Q
  • early occurence of the QRS complex
  • wide distorted shape
  • contraction of the ventricles outside the normal pattern
A

PVC

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12
Q

What is the cause of a PVC?

A

-stress, stimulants, MI, HF, cardiomyopathy, hypokalemia

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13
Q
  • no P wave

- QRS is wide and distorted

A

ventricular tachycardia

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14
Q

What is the cause of ventricular tachycardia?

A

MI, CAD, electrolyte imbalance, MVP, drug toxicity

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15
Q
  • extremely irregular
  • absent P wave
  • HR: 300-600
A

V-fib

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16
Q
  • the heart is quivering and not beating

- can cause sudden cardiac arrest

A

V-fib

17
Q

What is the treatment for v-fib?

A

defib
CPR
determine cause
begin ACLS

18
Q
  • irregular with a narrow QRS

- P wave is fine to coarse

A

A-fib

19
Q
  • PR interval >.20

- QRS >.12

A

-first degree AV block

20
Q

-PR interval gets progressively longer until it completely blocks a QRS complex

A

2nd degree AV block type 1

21
Q
  • PR intervals are constant
  • more P waves than QRS complexes
  • P waves are regular
A

2nd degree AV block type 2

22
Q
  • no communication between atria and ventricles
  • atria are firing irregularly and communication to ventricles is blocked
  • P wave is normal but not related to QRS
  • no relationship between P and RS
A

3rd degree block

ECG (1 decks)

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