For many White people, particularly those who live in White-centric communities, we never have to consider our own racial identity. I cannot tell you how many times Iâve heard White people called upon to describe their race only to have them say, âIâve never really thought about it. I guess Iâm just normal.â Hell, Iâm pretty sure I was talking this way not too long ago.
Sinus rhythm. A sinus rhythm is any cardiac rhythm where depolarisation of the cardiac muscle begins at the sinus node. It is characterised by the presence of correctly oriented P waves on the electrocardiogram (ECG). Sinus rhythm is necessary, but not sufficient, for normal electrical activity within the heart.
Normal Sinus Rhythm, NSR, is the term used to describe the normal heartbeat. Looking at the EKG tracing, all beats appear similar and are evenly spaced. The NSR implies that all of the beats have a normal pacemaker (starts at the SA node). All of the beats also follow the normal conduction pathways in NSR.