Question:
If one went to the bathroom after hearing Borchu but before he started birchas krias shma, is he allowed to make an Asher Yatzar? I ask because I know that one is not allowed to talk after borchu because it is the beginning of birchas krias shma. Does the same apply to Asher Yatzar?
Answer:
He should wait to say Asher Yatzar until after Shemona Esrei. There is no need to say Asher Yatzar immediately after exiting the bathroom, therefore it should wait.
Sources:
M:B 54-13, 66-23.