This paper provides information about the availability of referral to the laboratory tests for different groups of doctors of the Samara Region. The work took into account the opinion of practitioners with higher medical education. It was found that the prevailing group of doctors, regardless of age, sex, qualification category, professional experience, has insignificant restrictions (low availability for some rare tests only). The difference is observed for doctors with different geography of work: doctors in rural areas have more obstacles than the doctors from the cities. It is revealed that doctors who use laboratory studies in their practice most have practically no limitations in the laboratory tests, or they are few in number, whereas other groups of doctors have a similar picture of the limitation in the appointment of tests.