Not Your Average Syncope

HPI:  74 y/o male with history of HTN, DM, and early dementia presents to ED following a witnessed syncopal event at home.  Family denies seizure activity, trauma, or anticoagulation.  He is now asymptomatic and back at clinical baseline.  Laboratory workup and CXR are unremarkable.  EKG is shown below:

ECG:

Question:  
-What kind of block is this patient in?  
-If the EKG is unchanged from previous, does this patient still require admission for syncope workup?