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Positive predictive value of albumin: globulin ratio for feline infectious peritonitis in a mid-western referral hospital population.


J Feline Med Surg. 2012 Jul 18;


Authors: Jeffery U, Deitz K, Hostetter S


Abstract

Low albumin to globulin ratio has been found previously to have a high positive predictive value for feline infectious peritonitis (FIP) in cats with clinical signs highly suggestive of the disease. However, FIP can have a more vague clinical presentation. This retrospective study found that the positive predictive value of an albumin:globulin (A:G) ratio of <0.8 and <0.6 was only 12.5% and 25%, respectively, in a group of 100 cats with one or more clinical signs consistent with FIP. The negative predictive value was 100% and 99% for an A:G ratio of <0.8 and A:G<0.6%, respectively. Therefore, when the prevalence of FIP is low, the A:G ratio is useful to rule out FIP but is not helpful in making a positive diagnosis of FIP.

PMID: 22811479 [PubMed - as supplied by publisher]