NCLEXHIGH YIELDEKG LECTURENORMAL SINUS RHYTHM:This is a regular rhythmHR: 60-100bpmECG of a Normal SinusRhythm has a P wave (atrium) followed by aQRST (ventricular)—Atrium is predominately controlled byCalciumVentricle is predominately controlled byPotassium(K+)—> ASK GRAPHSmus BradycardiaSINUS BRADYCARDIA:HR is less than 60bpmIn athletes this is notabnormal, it is expected.Causesinclude: Medicines (BB, COB, Digoxin),hypothyroidism, SA Node DysfunctionPreview Mode
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