D. A. K. BLACK, M.D.
This content is PDF only. Please click on the PDF icon to access.
To the editor: I am full of praise for the [American Heart Association's] scheme (Ann Intern Med 75:251-252, 1971) for evaluating the severity of renal disease, which is a service to precise communication as well as to patient care. What is worthy of praise is also worthy of criticism, and I find the definition of the primary criterion for Class B (Functional Impairment) ambiguous. Should it not read, "Glomerular filtration rate reduced, but still more than 50% of normal" (added words in italic)?
BLACK DAK. Worthy Criteria, Worthy Criticism: A Correction. Ann Intern Med. ;76:145. doi: 10.7326/0003-4819-76-1-145_1
Download citation file:
Published: Ann Intern Med. 1972;76(1):145.
Copyright © 2019 American College of Physicians. All Rights Reserved.
Print ISSN: 0003-4819 | Online ISSN: 1539-3704
Conditions of Use