Current Medical Diagnosis & Treatment
Questions and Correct Answers
Cardiac rhythms may be classified as:
✓ ~~~ Regular or irregular
When rhythms are irregular, or rates are either fast or slow, and ECG will identify the
origin of the beats to be what?
✓ ~~~ Sinus node, AV node, Atrium, or Ventricle and the conduction pattern
Normal range for sinus rhythm
✓ ~~~ 60-100 bpm
If the rhythm is regular,
✓ ~~~ Look at the rate
(>100 Fast, 60-90 Normal, or <60 Slow)
if rhythm is irregular
✓ ~~~ note the pattern of irregularity
(sporadic, regularly irregular, or irregularly irregular)
Fast >100 rates
✓ ~~~ Sinus Tachycardia
Supraventricular (atrial or nodal) Tachycardia
Atrial Flutter with a regular ventricular response
Ventricular Tachycardia
Normal 60-90 rates
✓ ~~~ Normal sinus rhythm
Second degree AV block
Atrial Flutter with a regular ventricular response
Slow <60 rates
✓ ~~~ Sinus Bradycardia
Second-Degree AV block
Complete Heart Block
100-180 bpm
, ✓ ~~~ sinus tachycardia
150-250 bpm
✓ ~~~ supraventricular (atrial or nodal) tachycardia
100-175 bpm
✓ ~~~ Atrial Flutter with a regular ventricular response (fast)
60-90 bpm
✓ ~~~ normal sinus rhythm (heart rate)
60-100 bpm
✓ ~~~ Second- degree AV Block (normal)
75-100 bpm
✓ ~~~ Atrial Flutter with a regular ventricular response (normal)
<60 bpm
✓ ~~~ sinus bradycardia
30-60 bpm
✓ ~~~ second-degree AV block (slow)
<40 bpm
✓ ~~~ Complete heart block
Premature or extra beats at random intervals, but normal underlying rhythm (e.g.,
atrial or ventricular premature contractions, sinus arrhythmia)
✓ ~~~ Sporadic
Regular pattern of cadences (ventricular trigeminy)
✓ ~~~ Regularly Irregular
No discernable regularity (atrial fibrillation, atrial flutter)
✓ ~~~ Irregularly Irregular
Rhythm varies cyclically, speeding up with inspiration and slowing down with
expiration.
Heart sounds are normal, though S1 may vary with the heart rate.
Questions and Correct Answers
Cardiac rhythms may be classified as:
✓ ~~~ Regular or irregular
When rhythms are irregular, or rates are either fast or slow, and ECG will identify the
origin of the beats to be what?
✓ ~~~ Sinus node, AV node, Atrium, or Ventricle and the conduction pattern
Normal range for sinus rhythm
✓ ~~~ 60-100 bpm
If the rhythm is regular,
✓ ~~~ Look at the rate
(>100 Fast, 60-90 Normal, or <60 Slow)
if rhythm is irregular
✓ ~~~ note the pattern of irregularity
(sporadic, regularly irregular, or irregularly irregular)
Fast >100 rates
✓ ~~~ Sinus Tachycardia
Supraventricular (atrial or nodal) Tachycardia
Atrial Flutter with a regular ventricular response
Ventricular Tachycardia
Normal 60-90 rates
✓ ~~~ Normal sinus rhythm
Second degree AV block
Atrial Flutter with a regular ventricular response
Slow <60 rates
✓ ~~~ Sinus Bradycardia
Second-Degree AV block
Complete Heart Block
100-180 bpm
, ✓ ~~~ sinus tachycardia
150-250 bpm
✓ ~~~ supraventricular (atrial or nodal) tachycardia
100-175 bpm
✓ ~~~ Atrial Flutter with a regular ventricular response (fast)
60-90 bpm
✓ ~~~ normal sinus rhythm (heart rate)
60-100 bpm
✓ ~~~ Second- degree AV Block (normal)
75-100 bpm
✓ ~~~ Atrial Flutter with a regular ventricular response (normal)
<60 bpm
✓ ~~~ sinus bradycardia
30-60 bpm
✓ ~~~ second-degree AV block (slow)
<40 bpm
✓ ~~~ Complete heart block
Premature or extra beats at random intervals, but normal underlying rhythm (e.g.,
atrial or ventricular premature contractions, sinus arrhythmia)
✓ ~~~ Sporadic
Regular pattern of cadences (ventricular trigeminy)
✓ ~~~ Regularly Irregular
No discernable regularity (atrial fibrillation, atrial flutter)
✓ ~~~ Irregularly Irregular
Rhythm varies cyclically, speeding up with inspiration and slowing down with
expiration.
Heart sounds are normal, though S1 may vary with the heart rate.
