Rhythm Strip Review 3
Please select the most appropriate strip interpretation, unless noted all rhythm strips are six second strips.
- 1.
This Rhythm strip is:
- A.
Normal sinus rhythm
- B.
Sinus bradycardia
- C.
Sinus tachycardia
- D.
Accelerated junctional rhythm
Correct Answer
A. Normal sinus rhythmExplanation
The given rhythm strip is classified as normal sinus rhythm because it demonstrates a regular rhythm with a consistent P wave preceding each QRS complex. The heart rate falls within the normal range of 60-100 beats per minute, and there are no abnormalities or irregularities observed in the strip.Rate this question:
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- 2.
This Rhythm strip is:
- A.
Sinus tachycardia
- B.
Junctional rhythm
- C.
Sinus bradycardia
- D.
Normal sinus rhythm
Correct Answer
C. Sinus bradycardiaExplanation
The given rhythm strip is identified as sinus bradycardia because the P waves are present and upright in leads II, III, and aVF, indicating a sinus origin. The heart rate is below the normal range, with a slow and regular rhythm. The QRS complexes are narrow, suggesting that the electrical conduction through the ventricles is normal. Therefore, based on these characteristics, the rhythm strip is consistent with sinus bradycardia.Rate this question:
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- 3.
This Rhythm strip is:
- A.
Svt
- B.
A fib
- C.
Sinus tachycardia
- D.
Sinus bradycardia
Correct Answer
B. A fibExplanation
The correct answer is "a fib" which stands for atrial fibrillation. Atrial fibrillation is a type of arrhythmia characterized by irregular and rapid electrical signals in the atria of the heart. This irregularity causes the atria to quiver instead of contracting effectively, leading to an irregular and often fast heart rate. The rhythm strip provided likely shows irregular and chaotic P waves, which are characteristic of atrial fibrillation.Rate this question:
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- 4.
This Rhythm strip is:
- A.
Sinus tachycardia
- B.
Svt
- C.
Normal sinus rhythm
- D.
Atrial fibrillation
Correct Answer
C. Normal sinus rhythmExplanation
The given rhythm strip is classified as normal sinus rhythm because it shows a regular, consistent rhythm with a normal P wave preceding each QRS complex. There are no abnormalities or irregularities in the rhythm, indicating that the electrical impulses in the heart are originating from the sinus node and following the normal conduction pathway. Therefore, the correct answer is normal sinus rhythm.Rate this question:
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- 5.
This Rhythm strip is:
- A.
Atrial fibrillation
- B.
Sinus tachycardia
- C.
Junctional tachycardia
- D.
Asystole
Correct Answer
B. Sinus tachycardiaExplanation
The ECG rhythm strip exhibits a regular rhythm with clear P waves preceding each narrow QRS complex. While these features align with normal sinus rhythm, the crucial factor is the heart rate. If the rate is confirmed to be above 100 bpm, the correct interpretation is sinus tachycardia. Sinus tachycardia is characterized by a rapid heart rate originating from the sinoatrial node. The presence of P waves and narrow QRS complexes confirms the sinus origin. Therefore, if the rate exceeds 100 bpm, sinus tachycardia is the accurate diagnosis, distinguishing it from normal sinus rhythm.Rate this question:
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- 6.
This Rhythm strip is:
- A.
Normal sinus rythm
- B.
Junctional tachycardia
- C.
Sinus tachycardia
- D.
Atrial fibrillation
Correct Answer
D. Atrial fibrillationExplanation
The ECG presents an irregularly irregular rhythm with a rapid rate. Distinct P waves are absent, replaced by a chaotic baseline, indicating fibrillatory activity. The QRS complexes are narrow, suggesting a supraventricular origin. These features are consistent with atrial fibrillation. The irregular R-R intervals and lack of defined P waves differentiate atrial fibrillation from other tachycardias, such as sinus tachycardia or SVT, which typically exhibit regular rhythms. Therefore, atrial fibrillation is the most accurate interpretation of this rhythm strip.Rate this question:
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- 7.
This Rhythm strip is:
- A.
V tach
- B.
V fib
- C.
Atrial fibrillation
- D.
Asystole
Correct Answer
B. V fibExplanation
The correct answer is v fib, which stands for ventricular fibrillation. Ventricular fibrillation is a life-threatening cardiac arrhythmia characterized by chaotic and disorganized electrical activity in the ventricles. This results in the ineffective pumping of blood, leading to cardiac arrest. Immediate medical intervention, such as defibrillation, is required to restore a normal heart rhythm and prevent further complications.Rate this question:
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- 8.
This Rhythm strip is:
- A.
Normal sinus rhythm
- B.
Sinus bradycardia
- C.
Sinus arrythmia
- D.
1st degree av block
Correct Answer
B. Sinus bradycardiaExplanation
The given rhythm strip is identified as sinus bradycardia because the rhythm is regular and originates from the sinus node, as indicated by the presence of P waves before each QRS complex. However, the heart rate is slower than normal, with a heart rate less than 60 beats per minute. This can be seen by measuring the distance between two consecutive R waves and calculating the heart rate.Rate this question:
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- 9.
This Rhythm strip is:
- A.
Normal sinus rhythm
- B.
Sinus arrrhythmia
- C.
1st degree av block
- D.
None of these
Correct Answer
D. None of these -
- 10.
This Rhythm strip is:
- A.
Second degree type 2
- B.
Third degree
- C.
Atrial fibrillation
- D.
First degree av block
Correct Answer
C. Atrial fibrillationExplanation
The correct answer is atrial fibrillation. Atrial fibrillation is a type of irregular heart rhythm where the atria (upper chambers of the heart) quiver instead of contracting effectively. This can lead to an irregular and fast ventricular response. In this rhythm strip, there is no discernible P waves and the R-R intervals are irregular, indicating atrial fibrillation.Rate this question:
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- 11.
This Rhythm strip is:
- A.
V tach
- B.
Junctional tachycardia
- C.
Atrial fibrillation
- D.
Asystole
Correct Answer
B. Junctional tachycardiaExplanation
Based on the given options, the rhythm strip can be identified as junctional tachycardia. This is because junctional tachycardia is characterized by a regular rhythm with a heart rate of more than 100 beats per minute, and the absence of P waves. In the given strip, there are no visible P waves and the QRS complexes are narrow and regular, indicating a junctional origin of the tachycardia. Therefore, the correct answer is junctional tachycardia.Rate this question:
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- 12.
This Rhythm strip is:
- A.
Ventricular fibrillation
- B.
V tach
- C.
SVT
- D.
A fib
Correct Answer
A. Ventricular fibrillationExplanation
The correct answer is ventricular fibrillation. Ventricular fibrillation is a life-threatening arrhythmia characterized by chaotic and disorganized electrical activity in the ventricles. This results in ineffective pumping of blood and can lead to cardiac arrest. It is typically seen as a rapid and irregular rhythm with no discernible P waves or QRS complexes on an ECG. Prompt intervention with defibrillation is necessary to restore a normal heart rhythm and prevent cardiac arrest.Rate this question:
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- 13.
This Rhythm strip is:
- A.
Ventricular fibrillation
- B.
A fib
- C.
Normal sinus rhythm
- D.
V tach
Correct Answer
B. A fibExplanation
The correct answer is "a fib" which stands for atrial fibrillation. Atrial fibrillation is a type of irregular heart rhythm where the atria (upper chambers of the heart) quiver instead of contracting normally. This can lead to an irregular and often rapid ventricular (lower chamber) heart rate. It is characterized by the absence of distinct P waves and irregularly irregular QRS complexes on an ECG strip.Rate this question:
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- 14.
This Rhythm strip is:
- A.
V tach
- B.
Normal sinus rhythm
- C.
Atrial fibrillation
- D.
Asystole
Correct Answer
C. Atrial fibrillationExplanation
The given rhythm strip is likely to be atrial fibrillation because it lacks a discernible P wave and shows irregular and chaotic QRS complexes. Atrial fibrillation is characterized by the absence of coordinated atrial contractions, resulting in an irregular ventricular response. This is evident in the strip as the QRS complexes occur at irregular intervals.Rate this question:
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- 15.
This Rhythm strip is:
- A.
V tach
- B.
Normal sinus rhythm
- C.
Atrial fibrillation
- D.
Asystole
Correct Answer
C. Atrial fibrillationExplanation
Atrial fibrillation is a type of arrhythmia characterized by an irregular and rapid heartbeat. In this rhythm strip, there is no discernible P wave, and the QRS complexes are irregularly spaced. This suggests that the atria are not contracting in a coordinated manner, leading to the irregular rhythm. Therefore, the correct answer is atrial fibrillation.Rate this question:
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- 16.
This Rhythm strip is:
- A.
Normal sinus rhythm
- B.
Atrial fibrillation
- C.
Asystole
- D.
V tach
Correct Answer
A. Normal sinus rhythmExplanation
The given answer "normal sinus rhythm" suggests that the rhythm strip being referred to in the question shows a normal electrical activity of the heart. In a normal sinus rhythm, the heart's electrical signals originate from the sinus node, leading to regular and coordinated contractions of the atria and ventricles. This rhythm is characterized by a consistent P wave preceding each QRS complex, with a regular rate and normal intervals between each wave.Rate this question:
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- 17.
This Rhythm strip is:
- A.
Normal sinus rhythm with pjc's
- B.
Normal sinus rhythm
- C.
Atrial fibrillation
- D.
V tach
Correct Answer
A. Normal sinus rhythm with pjc'sExplanation
The given rhythm strip is classified as "normal sinus rhythm with pjc's." This means that the electrical activity of the heart is normal, with a regular rhythm originating from the sinus node. However, there are also premature junctional contractions (PJC's) present, which are early contractions originating from the atrioventricular (AV) junction instead of the sinus node. These PJC's can be seen as abnormal beats interrupting the regular sinus rhythm. Overall, the rhythm strip shows a normal sinus rhythm with the addition of premature junctional contractions.Rate this question:
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- 18.
This Rhythm strip is:
- A.
Sinus tachycardia
- B.
Normal sinus rhythm
- C.
Atrial fibrillation
- D.
None of these
Correct Answer
B. Normal sinus rhythmExplanation
The given rhythm strip is classified as a normal sinus rhythm because it displays a regular rhythm with a consistent P wave preceding each QRS complex. Additionally, the heart rate falls within the normal range, indicating that the electrical impulses are originating from the sinus node in the atria and being conducted properly through the AV node and ventricles. This is a normal and healthy rhythm.Rate this question:
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- 19.
This Rhythm strip is:
- A.
Atrial fibrillation
- B.
Atrial flutter
- C.
Ventricular fibrillation
- D.
Ventricular tachycardia
Correct Answer
B. Atrial flutterExplanation
Based on the given information, the correct answer is atrial flutter. Atrial flutter is a type of abnormal heart rhythm characterized by rapid and regular atrial contractions. It is different from atrial fibrillation, which is characterized by rapid and irregular atrial contractions. Ventricular fibrillation and ventricular tachycardia are both abnormal rhythms that originate in the ventricles of the heart, whereas atrial flutter originates in the atria.Rate this question:
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- 20.
This Rhythm strip is:
- A.
Sinus tachycardia
- B.
Normal sinus rhythm
- C.
Ventricular fibrillation
- D.
Atrial fibrillation
Correct Answer
A. Sinus tachycardiaExplanation
The given rhythm strip is identified as sinus tachycardia because the rhythm shows a consistent P wave before each QRS complex, indicating normal sinus rhythm. However, the heart rate is faster than normal, with an increased number of beats per minute. This is characteristic of sinus tachycardia, which can be caused by various factors such as exercise, stress, fever, or certain medications.Rate this question:
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- 21.
This Rhythm strip is:
- A.
3rd degree av block
- B.
Accelerated idioventricular rhythm
- C.
2nd degree type 2 av block
- D.
V tach
Correct Answer
C. 2nd degree type 2 av blockExplanation
The ECG strip shows a regular R-R interval, but the P waves and QRS complexes have no clear relationship. While the initial answer was 3rd-degree AV block, a closer look reveals consistent PR intervals for conducted beats with occasional dropped QRS complexes. This pattern suggests 2nd-degree AV block type 2 (Mobitz II). In this type, the PR interval remains constant for conducted beats, unlike 3rd-degree AV block where there's no relationship between P waves and QRS complexes. Therefore, the more accurate interpretation is 2nd-degree AV block type 2.Rate this question:
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- 22.
This Rhythm strip is:
- A.
3rd degree block
- B.
2nd degree type 2 block
- C.
Accelerated indioventricular rhythm
- D.
Normal sinus rhythm
Correct Answer
B. 2nd degree type 2 blockExplanation
The given rhythm strip is most likely a 2nd degree type 2 block. This can be inferred from the presence of dropped QRS complexes, which indicates intermittent conduction block at the level of the AV node or bundle of His. In a 2nd degree type 2 block, there is a fixed ratio of conducted to blocked P waves, resulting in a regular pattern of dropped beats. This is different from a 3rd degree block, where there is complete dissociation between the atria and ventricles, and from an accelerated idioventricular rhythm, which typically has a slower rate and wide QRS complexes. Normal sinus rhythm would not exhibit dropped beats.Rate this question:
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- 23.
This Rhythm strip is:
- A.
Normal sinus rhythm
- B.
Junctional rhythm
- C.
Sinus tachycardia
- D.
Idioventricular rhythm
Correct Answer
B. Junctional rhythmExplanation
This ECG rhythm strip displays a rapid, regular rhythm with narrow QRS complexes, but crucially, it lacks discernible P waves. The absence of P waves eliminates sinus tachycardia. The consistent R-R intervals and narrow QRS complexes point to a supraventricular origin. Given the lack of P waves, the most likely source is the AV node, indicating junctional tachycardia. In this rhythm, the AV node paces the heart, leading to a rapid, regular rate without preceding atrial depolarization. Therefore, junctional tachycardia is the correct interpretation, distinguishing it from sinus tachycardia and other rhythms.Rate this question:
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- 24.
This Rhythm strip is:
- A.
Aystole
- B.
Agonal rhythm
- C.
Sinus bradychardia
- D.
V tach
Correct Answer
B. Agonal rhythmExplanation
An agonal rhythm refers to a chaotic, irregular, and disorganized electrical activity of the heart. It is often seen in patients who are in a critical condition and experiencing cardiac arrest or near-death. This rhythm strip is indicative of agonal rhythm due to its irregularity and lack of any discernible pattern. The absence of clear P waves, QRS complexes, and T waves further supports this interpretation.Rate this question:
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- 25.
This Rhythm strip is:
- A.
Asystole
- B.
V fib
- C.
A fib
- D.
V tach
Correct Answer
A. AsystoleExplanation
The given rhythm strip is identified as asystole because it shows a flat line with no discernible electrical activity. Asystole is a condition characterized by the absence of cardiac electrical activity, resulting in the absence of a pulse and cardiac output. This is a life-threatening condition that requires immediate intervention such as cardiopulmonary resuscitation (CPR) and advanced cardiac life support (ACLS) measures.Rate this question:
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Mar 18, 2025Quiz Edited by
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Jun 26, 2014Quiz Created by
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