APEX: EKG monitors & Equipment Test
Questions and Answers
Question 1
All of the following are affective for the treatment of AFIB except:
A. Verapamil
B. Digoxin
C. Metoprolol
D. Adenosine
Correct Answer
D. Adenosine
Adenosine is it endogenous nucleoside that slows conduction through the AV node.
By stimulating the cardiac adenosine one receptor adenosine, activates potassium
current switch hyperpolarized is the cell membrane and reduces action potential
duration.
It is a efficacious for supraventricular tachycardia, as well as WPW with narrow QRS
It is not efficacious for a fib, a flutter, torsades de points, or ventricular tachycardia
Question 2
Hypermagnesemia EKG changes
Correct Answer
heart block and cardiac arrest
Has to be very high
Question 3
Hypocalcemia EKG changes
Correct Answer
prolonged QT interval
Page 1 of 20
,Question 4
First line treatment for sinus bradycardia (HR <60)
Correct Answer
Atropine
Other tx: external pacing, or glucagon (good for BB or CCB overdose)
Severely symptomatic pts (syncope/chest pain) should receive immediate
transcutaneous pacing.
Question 5
Loss of atrial kick w/ AFIB can reduce CO in pts with poor ventricular compliance, like
___________
Correct Answer
Aortic stenosis
Question 6
Match each lead to the cardiac region that it monitors:
Lead I
V3
aVF
V1
Inferior wall
Anterior wall
Septum
Lateral wall
Correct Answer
Lead I- lateral wall
V3- anterior wall
aVF- inferior wall
V1- septum
Page 2 of 20
, Question 7
Which lead is best for monitoring the P wave
Correct Answer
Lead II (best lead to monitor dysrhythmias)
R arm to left leg
Question 8
Brugada syndrome
Correct Answer
pseudo RBBB and persistent ST elevations in V1 and V2.
Type 1: ST elevations >2mm, downsloping of ST segment, inverted T wave
Type 2: ST elevations >2mm, "saddle back" ST-T wave configuration, upright or
biphasic T wave
A sodium ion channelopathy in the heart
Common cause of sudden nocturnal death, due to ventricular tachycardia or
fibrillation
Most common in males from south east Asia
Patient may require ICD or pad placement during surgery
Question 9
Common pacing modes: single chamber demand pacing
Correct Answer
AAI & VVI
Think of this as a back up mode
It only fires when the native heart rate falls below a predetermined rate
Page 3 of 20
Questions and Answers
Question 1
All of the following are affective for the treatment of AFIB except:
A. Verapamil
B. Digoxin
C. Metoprolol
D. Adenosine
Correct Answer
D. Adenosine
Adenosine is it endogenous nucleoside that slows conduction through the AV node.
By stimulating the cardiac adenosine one receptor adenosine, activates potassium
current switch hyperpolarized is the cell membrane and reduces action potential
duration.
It is a efficacious for supraventricular tachycardia, as well as WPW with narrow QRS
It is not efficacious for a fib, a flutter, torsades de points, or ventricular tachycardia
Question 2
Hypermagnesemia EKG changes
Correct Answer
heart block and cardiac arrest
Has to be very high
Question 3
Hypocalcemia EKG changes
Correct Answer
prolonged QT interval
Page 1 of 20
,Question 4
First line treatment for sinus bradycardia (HR <60)
Correct Answer
Atropine
Other tx: external pacing, or glucagon (good for BB or CCB overdose)
Severely symptomatic pts (syncope/chest pain) should receive immediate
transcutaneous pacing.
Question 5
Loss of atrial kick w/ AFIB can reduce CO in pts with poor ventricular compliance, like
___________
Correct Answer
Aortic stenosis
Question 6
Match each lead to the cardiac region that it monitors:
Lead I
V3
aVF
V1
Inferior wall
Anterior wall
Septum
Lateral wall
Correct Answer
Lead I- lateral wall
V3- anterior wall
aVF- inferior wall
V1- septum
Page 2 of 20
, Question 7
Which lead is best for monitoring the P wave
Correct Answer
Lead II (best lead to monitor dysrhythmias)
R arm to left leg
Question 8
Brugada syndrome
Correct Answer
pseudo RBBB and persistent ST elevations in V1 and V2.
Type 1: ST elevations >2mm, downsloping of ST segment, inverted T wave
Type 2: ST elevations >2mm, "saddle back" ST-T wave configuration, upright or
biphasic T wave
A sodium ion channelopathy in the heart
Common cause of sudden nocturnal death, due to ventricular tachycardia or
fibrillation
Most common in males from south east Asia
Patient may require ICD or pad placement during surgery
Question 9
Common pacing modes: single chamber demand pacing
Correct Answer
AAI & VVI
Think of this as a back up mode
It only fires when the native heart rate falls below a predetermined rate
Page 3 of 20
