Normal physiologic response to fever, exercise, anxiety, dehydration, or pain.Atrial and ventricular rhythms are regular.Atropine if rate decreases below 40 bpm.Can be seen in digoxin toxicity and inferior wall MI.Normal variation of normal sinus rhythm in athletes, children, and the elderly.Normal P wave preceding each QRS complex.Irregular atrial and ventricular rhythms.It takes time to develop a skill in interpreting EKGs, but once you get the hang of it, you’ll be able to interpret any squiggly line in the EKG paper. Premature Ventricular Contractions (PVC)Įver wonder how nurses and doctors can read ECG papers with ease? How do they differentiate atrial tachycardia from atrial fibrillation, or how even to know what atrial fibrillation or tachycardia is?ĮKG interpretation takes some great skill, a keen eye, and a good theoretical foundation on the different arrhythmias and the concepts around the heart’s conduction and the EKG machine itself.Third Degree AV Block (Complete Heart Block).Second Degree AV Block Mobitz I (Wenckebach).