Sinus Bradycardia Ecg Strip

We ll be going over normal sinus rhythm sinus bradycardia sinus tachycardia as well as something called sinus arrhythmia. Sinus rhythm with a resting heart rate of 60 bpm in adults or below the normal range for age in children.

Cv Physiology Abnormal Rhythms Definitions

Sinus bradycardia sa node fires at a slower than normal rate for the person s age.

Sinus bradycardia ecg strip. One precedes each qrs pri. In this video we will go over the different sinus rhythms. P wave is positiv in limb lead ii.

Rhythm strips from 12 lead ecgs showing different forms of bradycardia and conduction disturbance. P waves with constant morphology preceding every qrs complex. 0 12 to 0 20 sec.

And 7 8 9 and since p waves are all upright in this lead ii monitoring strip the underlying rhythm is sinus arrhythmia. So let s go through our different steps in interpretation. Regular rhythm with ventricular rate slower than 50 beats per minute.

R r and p p intervals are regular rate. This strip meets the criteria of. 0 11 sec or less.

85 125 bpm. Sinus bradycardia can have many causes from a completely normal variation to a malfunction of the sinus node. Definition of sinus bradycardia.

Causes of sinus bradycardia include. In sinus bradycardia the sinus node fires at a slow 60 bpm rate. Normal physiology in an athelete.

Sinus node dysfunction with junctional rhythm and absence of any p waves until the end of the tracing. 60 100 bpm. But because the pr interval is equal and normal 0 14 second preceding beats 1.

Less than 60 bpm p waves. Marked sinus bradycardia and complete av block with junctional escape. Since the overall heart rate is under 60 minute there is also bradycardia.

Constant from beat to beat qrs complex. Regular rhythm rate less than 60 bpm 40 bpm in this case regular p waves before every qrs. 110 150 bpm.

Sinus bradycardia occurs on an ecg when there is a normal upright p wave in lead ii sinus p wave preceding every qrs complex with a ventricular rate of less than 60 beats per minute. Normal physiological causes of sinus bradycardia. 75 115 bpm.

Upright same shape and size. Sinus bradycardia fulfills the criteria for sinus rhythm but the heart rate is slower than 50 beats per minute. Here in this strip we have normal sinus rhythm.

Normal heart rates in children. If we look at the rhythm we can see that it is regular. Sinusbradycardia of around 40 bpm.

Sinus Arrhythmia Litfl Medical Blog Ecg Library Basics