Your 29 year old patient has a heart rate of 76 BPM. Analysis of the ECG reveals an irregular rhythm with one upright P wave preceding each narrow QRS complex. The heart rate seems to speed up and slow down on a cyclical basis. This type of irregularity is called ________ irregularity.

Question

Quizplus · Accepted Answer

The description matches a patterned irregularity known as "sinus arrhythmia," where the heart rate increases with inspiration and decreases with expiration, showing a cyclical pattern of speeding up and slowing down. This is a normal variation in heart rhythm.

Your 29 Year Old Patient Has a Heart Rate of 76