You have performed an ECG on a patient, resulting in the following ECG tracing. How would you classify the patient's rhythm?
A)Sinus bradycardia
B)Sinus tachycardia
C)Sinus dysrhythmia
D)Sinus arrest

Question

You have performed an ECG on a patient, resulting in the following ECG tracing. How would you classify the patient's rhythm? 
A)Sinus bradycardia 
B)Sinus tachycardia 
C)Sinus dysrhythmia 
D)Sinus arrest

Quizplus · Accepted Answer

The ECG shows irregularity in the rhythm with a fluctuation of the heart rate during inspiration and expiration, indicating sinus dysrhythmia. There are also normal P waves preceding each QRS complex and a consistent PR interval, indicating a sinusal origin of the rhythm. However, the heart rate is not slow enough to be classified as bradycardia or fast enough for tachycardia. There are no signs of sinus arrest.

You Have Performed an ECG on a Patient, Resulting in the Following