In second-degree type II AV nodal block (a.k.a. Mobitz Type II AV block), the AV ... P waves may be followed by a QRS complex, giving the ECG a normal appearance, then the fourth P wave may ...

Second-degree heart block can be classified as: Mobitz type I, which may not have symptoms but can be a warning sign of the more serious Mobitz type II Mobitz ... away. An ECG relies on electrodes ...

In second degree type II AV nodal block (a.k.a. Mobitz Type II AV block), the AV ... P waves may be followed by a QRS complex giving the ECG a normal appearance, then the fourth P wave may ...