Cardiac Electrophysiology, Telemetry, And EKG Basics Stokke N180
This is not about the dysrhythmias - those will be on another quiz. This is on reading the strips and what all the waves, phases, etc. Represent. As always, the normal disclaimers apply. . .
- 1.
What does phase 0 is this action potential chart represent?- A.
Depolarization
- B.
Rapid Repolarization
- C.
Refractory period
- 2.
What does phase 1 is this action potential chart represent?
- A.
Early repolarization
- B.
Early plateau phase
- C.
Early depolarization
- 3.
What does phase 2 is this action potential chart represent?
- A.
Refractory period
- B.
Early repolarization
- C.
Plateau phase
- 4.
What does phase 3 is this action potential chart represent?
- A.
Depolarization
- B.
Rapid repolarization
- C.
Early repolarization
- 5.
What does phase 4 is this action potential chart represent?
- A.
Refractory period
- B.
Depolarization
- C.
Repolarization
- 6.
In this lead strip, which is the most likely diagnosis for the bottom lead?
- A.
NS Rhythm
- B.
AV block one
- C.
Tachycardia
- 7.
On EKGs, the P waves represent what?
- A.
Atrial depolarization
- B.
Atrial repolarization
- C.
SA node firing
- 8.
On EKGs, the PR interval represents what?
- A.
The time it takes for the atria to contract.
- B.
The time it takes for the impulse to get from the SA node (the moment it is created) to the ventricles.
- C.
Atrial repolarization
- 9.
On EKGs, the QRS interval (aka complex) represents what?
- A.
Ventricular repolarization
- B.
Ventricular depolarization
- C.
Diastole
- 10.
On EKGs, the T waves represent what?
- A.
Ventricular Repolarization
- B.
Ventricular Depolarization
- C.
Papillary muscle repolarization
- 11.
On EKGs, the QT interval represent what?
- A.
The amount of time it takes the ventricles to depolarize
- B.
The amount of time it takes the ventricles to repolarize
- C.
A + B
- 12.
On an EKG, each SMALL block represents how much time?
- A.
0.4 seconds
- B.
0.2 seconds
- C.
0.04 seconds
- 13.
On an EKG, each LARGE block represents how much time?
- A.
O.4 seconds
- B.
0.2 seconds
- C.
0.04 seconds
- 14.A normal PR interval is _____________.
- A.
0.12 - 0.2 seconds
- B.
0.04 - 0.10 seconds
- C.
1.0 - 2.0 seconds
- 15.A normal QRS complex is _____________.
- A.
0.12 - 0.2 seconds
- B.
0.04 - 0.10 seconds
- C.
1.0 - 2.0 seconds
- 16.A normal QT interval (which shows us the amount of time it takes to get the ventricles depolarized then repolarized) is _________________.
- A.
0.04 - 0.30 seconds
- B.
0.03 - 0.4
- C.
0.3 –0.44 seconds
.jpg "On an EKG, each SMALL block represents how much time?")
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