“Lambeau” is a dog from Wisconsin that presented with clinical signs of cough, lethargy and anorexia. A neighbor’s dog recently died from blastomycosis, and Lambeau was known to frequent the same area as that dog. The veterinarian sent a urine specimen to MiraVista Diagnostics for MVista® Blastomyces Ag Quantitative EIA (Test code 316), and the urine antigen test result was negative. The veterinarian was concerned about a false negative.
Question: What additional tests were run to rule out a false negative?
The MVista® Blastomyces Canine IgG Antibody EIA (test code 330) and the MVista® Histoplasma Canine IgG Antibody EIA (test code 327) tests were performed on serum from Lambeau. The Blastomyces antibody result was positive at 17 antibody units, whereas Histoplasma antibody was negative. The veterinarian decided to treat with itraconazole for suspected blastomycosis, and Lambeau improved clinically.