Heather Oland (asker) Aug 24, 2017:

Thank you all for your consideration of this question. Perhaps the future will bring clarity.

Anne Schulz Aug 22, 2017:

Or could it be "relacionado" (in the sense of "dependent parameters")?

Leda Roche Aug 21, 2017:

This is a guess just to help: I agree with Marie about "relación" and the other comments about derived parameters. In that case it could be translated as "ratio", so the /R also applies in English.

Anne Schulz Aug 21, 2017:

Let's hope then that some competent ES<>EN colleague can weigh in at this point :-)

Heather Oland (asker) Aug 21, 2017:

Thanks for your input, Anne. I do have Total Protein and Albumin (accidentally skipped them when I was typing out the list.) I think you may be on to something, although I'm not sure how to get from "derived" or "calculated" to "R" in Spanish either.

Anne Schulz Aug 21, 2017:

Does your list happen to include total protein and albumin as well? Then all of the /R parameters would be derived parameters (urea can be calculated from BUN, globulin can be calculated from total protein minus albumin, A/G ratio can of course be calculated from albumin and globulin, VLDL can be estimated from total cholesterol, HDL, and triglycerides according to the Friedewald formula, and indirect bilirubin is usually determined as the difference between total bilirubin and direct bilirubin. (I have no idea, however, how to get from "derived" or "calculated" to "R" in Spanish!)

Heather Oland (asker) Aug 21, 2017:

Thank you, Marie. That definitely makes sense in the case of "/R A/G." I can't quite figure if it makes sense in the other cases. I'm hoping someone has seen this or something quite like it before.

Marie Wilson Aug 21, 2017:

Could it be Relación?