Marcia Fisher at El Centro [CA] Regional Medical Center asks: >>Does anyone know where to purchase the dye Night Blue? I used this stain for >>AFB many years ago (1986) and would like to introduce it here.<<
I don't know whether it's still available. Victoria Blue R was used for this same purpose, and it may still be available. These blue acid-fast stains were sometimes used by color-blind pathologists, who cannot distinguish red acid-fast bacilli in a blue background. Light microscopy - red or blue - for AFB has been obsolete at least since the 1960's - fluorescent methods (auramine) are much more sensitive. Pathologists continue to use them, though. I think that light microscopic AFB stains should be banned by regulatory action. Bob Richmond Samurai Pathologist Knoxville TN _______________________________________________ Histonet mailing list Histonet@lists.utsouthwestern.edu http://lists.utsouthwestern.edu/mailman/listinfo/histonet
