High Acuity Hesi > EKG Practice > Flashcards

EKG Practice Flashcards

(47 cards)

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1
Q

What type of rhythm is this?

A

Supraventricular tachycardia

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2
Q

What is the normal rate of the SA node?

A

60-100 bpm

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3
Q

What type of rhythm is this?

A

Sinus bradycardia

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4
Q

What are some characteristics of supraventricular dysrhythmias?

A
  • No clearly identifiable P wave, may be hidden in T or R waves
  • Normal QRS
  • Tachycardia
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5
Q

What type of rhythm is this?

A

Premature ventricular contraction

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6
Q

What type of rhythm is this?

A

Ventricular fibrillation

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7
Q

What does the T-wave represent?

A

Represents the return to the resting state (repolarization) of the ventricles. It normally starts at the isoelectric line, rises gradually & then returns to the isoelectric line

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8
Q

What type of rhythm is this?

A

Torsades de pointes

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9
Q

What type of rhythm is this?

A

Second Degree Heart Block, Type 1 (Wenckebach)

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10
Q

What type of rhythm is this?

A

Pulseless electrical activity

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11
Q

What is the normal rate of the ventricles?

A

20-40 bpm

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12
Q

What type of rhythm is this?

A

Atrial flutter

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13
Q

What type of rhythm is this?

A

Second Degree Heart Block, Type 1 (Wenckebach)

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15
Q

What type of rhythm is this?

A

3rd degree heart block

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16
Q

What type of rhythm is this?

A

Atrial Fibrillation

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17
Q

What type of rhythm is this?

A

Second Degree Heart Block, Type 2 (Mobitz, type 2)
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18
Q

What type of rhythm is this?

A

Ventricular tachycardia

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19
Q

What causes a prolonged QTc?

A
  • CAD, Cardiomyopathy
  • Severe Bradycardia, High-Grade AV Block
  • Anti-Arrhythmics (Type III- K+ blockers, Amiodarone)
  • Psychotropic Meds - SSRIs, Lithium, Mellaril, Haldol
  • HypoCalcemia, HypoKal-emia (Diuretics, Emesis, Diarrhea)
  • Prolonged QT Syndrome (inherited)
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20
Q

What type of rhythm is this?

Study These Flashcards
A

Sinus bradycardia

21
Q

What causes pathologic Q-waves?

Study These Flashcards
A
  • Myocardial Infarction
  • Hypertrophic Cardiomyopathy
  • Incorrect 12 lead placement
22
Q

What type of rhythm is this?

Study These Flashcards
A

1st degree heartblock

23
Q

What are some charactersitics of atrial dysrhythmias?

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A
  • Abnormal P waves
  • More P waves than QRS’s
  • Atrial rates are faster than Ventricular rates
  • Normal QRS
24
Q

What are some characteristics of a normal Q-wave?

Study These Flashcards
A
  • Narrow
  • Duration
  • 25% the amplitude of the R-wave
  • Normally appear in Leads I, aVL, V5, V6
25
Q

What are some characteristics of pathologic Q-waves?

Study These Flashcards
A
  • Prolonged duration > 0.20 sec (1 mm)
  • > 2 mm deep (2 large blocks)
  • > Depth 25% - 33% of QRS amplitude
26
What type of rhythm is this?
Ventricular tachycardia
27
What type of rhythm is this?
Torsades de pointes
28
What type of rhythm is this?
1st degree heartblock
29
What does the QT-interval reprsent?
Represents time between onset of ventricular depolarization & the end of ventricular repolarization, Normal QT Interval= Usually \< 0.40 seconds depending on HR
30
What does the p-wave represent in the qrs complex?
atrial depolarization
31
What type of rhythm is this?
Atrial flutter
32
What does the ST segment represent?
represents the time between ventricular depolarization & repolarization of the ventricles; normally isoelectric
33
In what order does an electrical impulse travel down the cardiac conduction system?
1. SA node 2. AV node 3. Bundle of His 4. Intervenricular septum 5. Purkinje fibers
34
What does the QRS complex represent?
It represents spread of the electrical impulse through both ventricles.
35
What type of rhythm is this?
Second Degree Heart Block, Type 2 (Mobitz, type 2)
36
What type of rhythm is this?
Sinus tachycardia
37
What type of rhythm is this?
Sinus tachycardia
38
What can a QTc \> 0.50 seconds lead to?
Can lead to fatal ventricular dysrhythmias- V-Tachy, VFib, and Torsades De Pointes
39
What type of rhythm is this?
Premature ventricular contraction
40
What type of rhythm is this?
3rd degree heart block
41
What type of rhythm is this?
Pulseless electrical activity
42
What is the normal rate of the AV node?
40-60 bpm
43
What does the q-wave represent in the QRS complex?
It is the 1st negative deflection in the qQRS complex
44
What type of rhythm is this?
Ventricular fibrillation
45
What type of rhythm is this?
Supraventricular tachycardia
46
What type of rhythm is this?
Atrial Fibrillation
47
IWhat does the PR interval represent?
Represents time of cardiac depolarization from SA node to AV node
48
What does a U-wave represent?
Represents repolarization of the His-Purkinje fibers P (seen in hypokalemia)
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