BRIEF-AbbVie says expects Q2 EPS, excluding items, of $0.78 to $0.80

April 26 (Reuters) - AbbVie Inc : * Says expects Q2 EPS, excluding items, of $0.78 to $0.80 * Says expects Q2 revenue will grow in low single digit percentage range * CEO says EU rejection of pfizer's xeljanz will not have dramatic short-term