Question

variations in respiratory rate is a symptom of
multiple choice
sa node block.
paroxysmal atrial tachycardia
sinus arrhythmia.
ventricular tachycardia.

Explanation:

Sinus arrhythmia is characterized by variations in heart rate with respiration. SA node block affects the electrical conduction starting from the sino - atrial node. Paroxysmal atrial tachycardia is a rapid heart rate starting in the atria. Ventricular tachycardia is a fast heart rate originating in the ventricles. Variations in respiratory rate are related to sinus arrhythmia as the heart rate changes with breathing patterns in this condition.

Answer:

sinus arrhythmia.