372-2

The canine antibody to sheep red blood cells may be used as a positive control for our canine Coombs test, catalog numbers 392-2 and 392-5, or as a hemagglutination test reagent for canine rheumatoid factor. To prepare the positive control fresh sheep red blood cells must be sensitized with the antibody according to instructions. Store the antibody at -10°C until the expiration date or at 2-7°C if used within 6 months of receipt. Sensitized sheep red blood cells may be stored at 2-7°C for two days. If the resuspension is made in Alsever's solution the sensitized cells can be stored for several days.