10

What are the I-IV blood type descriptions shown below (commonly used in Eastern Europe), and how do you translate them into the ABO-system?

enter image description here

fileunderwater
  • 16,670
  • 3
  • 49
  • 88
MikeF
  • 211
  • 1
  • 2
  • 5
  • 1
    What do you mean by translate? – WYSIWYG Nov 11 '14 at 07:09
  • @WYSIWYG: Convert it to the system used in the West: http://www.redcrossblood.org/learn-about-blood/blood-types – MikeF Nov 11 '14 at 07:14
  • 5
    I still don't understand. Isn't it already clear from the image? – WYSIWYG Nov 11 '14 at 07:15
  • 1
    @WYSIWYG: What's this (I), (II), (III), etc. stuff? I guess that's what I'm asking. – MikeF Nov 11 '14 at 07:17
  • I think this description is wrong. Blood type used to be described as AB-I, A-II, B-III and O-IV plus Rh Positive or Negative. – antonio Feb 13 '19 at 23:59
  • You should provide references for your answers. The article linked to in my answer describes two numerical systems: one created by Jansky (which is what is shown in the question and referred to in my answer) and one created by Moss (which is what you are describing). – canadianer Feb 14 '19 at 00:06

1 Answers1

21

It is a direct correlation between the ABO blood groups and the Roman numerals. 

 O: I

 A: II

 B: III

AB: IV

This numeric system was pioneered by Jan Jansky of Czechoslovakia in the early 20th century. Apparently it is still used in some former Soviet states.

Erb IH. 1940. Blood Group Classification (A Plea for Uniformity). Can Med Assoc J 42(5):418-421.

canadianer
  • 17,692
  • 4
  • 49
  • 84