Question 1

_____ is the ability of cardiac cells to spontaneously initiate an electrical impulse without being stimulated from another source.

Accepted Answer

The answer of _____ is the ability of cardiac cells...

Question 2

Tall,peaked T waves observed on the ECG are most commonly seen in patients with _____.

Accepted Answer

A)  hypokalemia 
B)  hyperkalemia 
C)  hyponatremia 
D)  hypernatremia

Question 3

The intrinsic rate of the atrioventricular (AV)bundle is _____ beats/min.

Accepted Answer

A)  20 to 40 
B)  40 to 60 
C)  60 to 80 
D)  80 to 100

Question 4

On the ECG,what do the ST segment and T wave represent?

Accepted Answer

The answer of On the ECG,what do the ST segment...

Question 5

The period during the cardiac cycle when cells cannot respond to a stimulus,no matter how strong,is called the _____ period.

Accepted Answer

A)  depolarized 
B)  supranormal 
C)  relative refractory 
D)  absolute refractory

Question 6

MATCHING
-Each electrode placed in a "V" position is a(n)_____ electrode.

Accepted Answer

A) Electrolyte 
B) Voltmeter 
C) Chemical 
D) Ectopic 
E) Reciprocal changes
F)Atrial
G)Indicative changes
H)Amplitude
I)Repolarization
J)Supranormal
K)Ventricular
L)Reentry
M)Positive
N)Augmented

Question 7

In most patients,the sinoatrial (SA)and atrioventricular (AV)nodes are supplied by the _____ coronary artery.

Accepted Answer

A)  right 
B)  left main 
C)  circumflex 
D)  left anterior descending

Question 8

MATCHING
-Element or compound that breaks into charged particles (ions)when melted or dissolved in water or another solvent

Accepted Answer

A) Electrolyte 
B) Voltmeter 
C) Chemical 
D) Ectopic 
E) Reciprocal changes
F)Atrial
G)Indicative changes
H)Amplitude
I)Repolarization
J)Supranormal
K)Ventricular
L)Reentry
M)Positive
N)Augmented

Question 9

MATCHING
-The QRS complex represents _____ depolarization.

Accepted Answer

A) Electrolyte 
B) Voltmeter 
C) Chemical 
D) Ectopic 
E) Reciprocal changes
F)Atrial
G)Indicative changes
H)Amplitude
I)Repolarization
J)Supranormal
K)Ventricular
L)Reentry
M)Positive
N)Augmented

Question 10

List the ECG leads that view the heart in the horizontal plane,allowing a view of the front and left side of the heart.

Accepted Answer

The answer of List the ECG leads that view the...

Question 11

Complete the following chart:
 $\begin{array}{lccc}
  \text {  Lead } & \text { Positive Electrode} & \text { Heart Surface Viewed }  \
 \text {  aVR   } & ---------& ----------\
 \text {  aVL   } & ---------& ----------\
 \text {  aVF   } & ---------& ----------\
\end{array}$

Accepted Answer

The answer of Complete the following chart:
 \(\begin{array}{lccc}
  \text...

Question 12

MATCHING
-Height (voltage)of a waveform on the ECG

Accepted Answer

A) Electrolyte 
B) Voltmeter 
C) Chemical 
D) Ectopic 
E) Reciprocal changes
F)Atrial
G)Indicative changes
H)Amplitude
I)Repolarization
J)Supranormal
K)Ventricular
L)Reentry
M)Positive
N)Augmented

Question 13

MATCHING
-An ECG machine is a sophisticated _____.

Accepted Answer

A) Electrolyte 
B) Voltmeter 
C) Chemical 
D) Ectopic 
E) Reciprocal changes
F)Atrial
G)Indicative changes
H)Amplitude
I)Repolarization
J)Supranormal
K)Ventricular
L)Reentry
M)Positive
N)Augmented

Question 14

Which of the following correctly reflects examples of ectopic (latent)pacemakers?

Accepted Answer

A)  The SA node and AV junction 
B)  The AV junction and ventricles 
C)  The SA node and right bundle branch 
D)  The AV junction and left bundle branch

Question 15

On the ECG,the P wave represents atrial _____ and the QRS complex represents ventricular _____.

Accepted Answer

A)  depolarization; depolarization 
B)  repolarization; repolarization 
C)  repolarization; depolarization 
D)  depolarization; repolarization

Question 16

The QT interval is measured from the beginning of the _____.

Accepted Answer

A)  QRS complex to the end of the T wave 
B)  P wave to the end of the QRS complex 
C)  QRS complex to the beginning of the T wave 
D)  P wave to the beginning of the QRS complex

Question 17

Lead II records the difference in electrical potential between the _____ leg and _____ arm.

Accepted Answer

A)  left; left 
B)  left; right 
C)  right; left 
D)  right; right

Question 18

MATCHING
-The P wave represents _____ depolarization.

Accepted Answer

A) Electrolyte 
B) Voltmeter 
C) Chemical 
D) Ectopic 
E) Reciprocal changes
F)Atrial
G)Indicative changes
H)Amplitude
I)Repolarization
J)Supranormal
K)Ventricular
L)Reentry
M)Positive
N)Augmented

Question 19

MATCHING
-ECG changes observed in leads that look directly at the affected area of the heart

Accepted Answer

A) Electrolyte 
B) Voltmeter 
C) Chemical 
D) Ectopic 
E) Reciprocal changes
F)Atrial
G)Indicative changes
H)Amplitude
I)Repolarization
J)Supranormal
K)Ventricular
L)Reentry
M)Positive
N)Augmented

Question 20

In the heart's conduction system,the _____ receive(s)an electrical impulse from the bundle of His and relay(s)it to the Purkinje fibers in the ventricular myocardium.

Accepted Answer

A)  atrioventricular (AV)node 
B)  atria 
C)  sinoatrial (S
A) node 
D)  right and left bundle branches

Exam 2: Basic Electrophysiology

_____ is the ability of cardiac cells to spontaneously initiate an electrical impulse without being stimulated from another source.

Tall,peaked T waves observed on the ECG are most commonly seen in patients with _____.

The intrinsic rate of the atrioventricular (AV) bundle is _____ beats/min.

On the ECG,what do the ST segment and T wave represent?

The period during the cardiac cycle when cells cannot respond to a stimulus,no matter how strong,is called the _____ period.

MATCHING -Each electrode placed in a "V" position is a(n) _____ electrode.

In most patients,the sinoatrial (SA) and atrioventricular (AV) nodes are supplied by the _____ coronary artery.

MATCHING -Element or compound that breaks into charged particles (ions) when melted or dissolved in water or another solvent

MATCHING -The QRS complex represents _____ depolarization.

List the ECG leads that view the heart in the horizontal plane,allowing a view of the front and left side of the heart.

Complete the following chart: $\begin{array}{lccc} \text { Lead } & \text { Positive Electrode} & \text { Heart Surface Viewed } \\ \text { aVR } & ---------& ----------\\ \text { aVL } & ---------& ----------\\ \text { aVF } & ---------& ----------\\\end{array}$

MATCHING -Height (voltage) of a waveform on the ECG

MATCHING -An ECG machine is a sophisticated _____.

Which of the following correctly reflects examples of ectopic (latent) pacemakers?

On the ECG,the P wave represents atrial _ and the QRS complex represents ventricular _.

The QT interval is measured from the beginning of the _____.

Lead II records the difference in electrical potential between the _ leg and _ arm.

MATCHING -The P wave represents _____ depolarization.

MATCHING -ECG changes observed in leads that look directly at the affected area of the heart

In the heart's conduction system,the _____ receive(s) an electrical impulse from the bundle of His and relay(s) it to the Purkinje fibers in the ventricular myocardium.