Short-term assessment of red blood cell survival using 51Cr

(5) Cr techniques for the study of red blood cell survival over long periods in the steady state are now well established (Ebaugh, Emerson, and Ross, 1953; Mollison and Veall, 1955; Hughes Jones and Mollison, 1956). This paper presents the results of an investigation of the validity of a (51)Cr study not exceeding 10 days which is well suited to a combination with a (59)Fe technique for the rapid simultaneous assessment of red cell production and destruction where haematological conditions may show fairly rapid changes.