…to the brain can cause: difficulty concentrating irritability or abnormal behaviour slurred speech visual disturbance confusion focal neurological signs drowsiness or unconsciousness seizures coma The…

…the difference in R wave amplitude, note the slurred terminal portion of the R wave in the high risk morphology, which replaces the sharp negative…

…Incomplete LBBB QRS Duration $\ge 120$ msec [3] 110 to 119 msec [3] Morphology Broad, notched, or slurred R waves in I, aVL, V5…