A number of foreign students - non-native speakers - study programmes taught in Czech at Czech universities. They have opporunities to improve their Czech communicatice competence in Czech language classes organized by language centers of their universities.
Even though those students had to prove their competence in Czech is at least at the B1 level of CEFR, there is still a substantial room for improving their communicative competence. The subject of their instruction is stanard language.
The question addressed is if non-standard Czech, professional talk, and sociolect have its place in such courses as well. Evidence is presented, based on the sample of foreign medical students, that professional talk has its irreplaceble position in their langauge training.