Sonoma County’s largest school district has started doing baseline concussion testing for its student athletes, Santa Rosa City Schools board president Bill Carle said at Wednesday night’s school board meeting.

More than 300 athletes were given the computer-based test last week, he said.

The goal remains to test every student athlete, according to Carle.

The district’s efforts to create a concussion awareness program had earlier hit a snag when a partnership with Sonoma State University to provide certified athletic trainers at all five comprehensive high schools fell through. The district then scrambled to at least get baseline results on file so that if student athletes do sustain an injury, experts can test the student’s reactions against the results from the baseline test.

Those Santa Rosa athletes not yet tested are expected to go through the program this weekend, Carle said.

Other schools and districts, including Casa Grande and Petaluma High Schools, as well as Rancho Cotate High School, already have programs under way.