What was the name of the common physical examination performed by doctors on ellis island that took very little time?   what diseases could doctors detect with this method?

The Six Second Exam

Explanation:

Immigrants at Ellis Island, an immigration center in New York Harbor underwent an immediate examination where they were observed and asked to climb a flight of stairs. Next they were examinedthrough a procedure dubbed The Six Second Exam. While aligned on the stairs incoming immigrants were viewed by their doctors from above in order to identify several signs of illness. Afterwards, with the aid of interpreters, doctors had previously-examined persons marked with symbols that represented their conditions.These included a range of conditions such as: H- heart problems identifiable by heavy breathing breathing; Pg-pregnancy; B- back problems; G- trauma, X on upper right shoulder- mental impairments; and Ct- an eye disease.

Chalk marks with these symbols either led to immigrant quarantine and detainment for skin conditions, measles etc.or deportation for physical disabilities (vision, hearing impairment).