Acetylcholine affects the heart by:

Your patient’s rhythm is regular with a rate of 30.  It has no P waves and the QRS width for each complex is 0.16 seconds.  What is the rhythm?

An abnormality in conduction through the ventricles  is identified on the ECG tracing by a(n):

The parietal pericardium is the

This AV block has a consistent PR interval and normal QRS complexes, but occasionally “drops” a QRS complex. 

A premature beat originating in the atria is a(n):

Your patient is in ventricular tachycardia with a rate of 160. The only complaint is weakness and dizziness. What would be the most appropriate treatment at this time?

A 42 year old patient complains of substernal chest pain radiating into their jaw and unrelieved by rest.  Their pain is an 8/10 and they report no previous cardiac history.  Their pulse is regular and their ECG is normal. Vitals HR 100, BP 130/80, SpO2 98%, RR 24. Select the most appropriate treatment plan.

If you determine what you see on the ECG is a wandering atrial pacemaker rhythm with a rate of 70 suddenly accelerates to a rate of 120, now the rhythm should be called:

You observe an ECG with a regular rate at 88. There is a round upright p wave before every QRS, a PRI of .12, and a normal QRS complex of .08 seconds. What is this rhythm?