A Grand Forks teenager battling leukemia has postponed her Make-A-Wish Foundation cruise to Mexico because of a medical setback.

Scott Dvorak said his daughter Brittany, 15, recently was notified by the foundation that her wish was granted to take a family cruise and swim with dolphins in Puerto Vallarta, Mexico. The weeklong vacation was scheduled to begin on Valentine’s Day.

But she’s been in Altru Hospital since Sunday, and her low blood counts mean she can’t go on the trip, Dvorak said. “We’re not canceling it, we’re just putting it on hold for now,” he said.