it becomes "razón normalizada internacional" in full?
No,
RIN - Razón/(Ratio) Internacional Normalizada - which, curiously enough, has not appeared in anyone's answers, to date.
ratio internacional normalizada - English translation – Linguee
www.linguee.com/spanish-english/.../ratio internacional nor...International Normalised Ratio (razón internacional normalizada o RIN) para ... Normalised Ratio [INR] (Razón Internacional Normalizado [RIN]) 2,5 a [...].
Ortopedia - Volume 1 - Page 37 - Google Books Result
https://books.google.cl/books?isbn=9500607913 - Translate this page
Robert H. Fitzgerald, Herbert Kaufer, Arthur L. Malkani - 2004 - Medical
El tiempo de protrombina (TP) y la Razón Internacional Normalizada (RIN) deben ser evaluados antes del bloqueo neuraxial en pacientes con terapia ...
Cuidados perioperatorios en cirugía cardiovascular
https://books.google.cl/books?isbn=950062043X - Translate this page
2000