- Specimen
- 1.5 mL citrated plasma collected as whole blood in blue top tube, spun and plasma placed in non-additive tube (labeled as "Citrated plasma"). Freeze citrated plasma.
- Description
- To evaluate for Von Willebrands factor deficiency. Results will be expressed as a percentage. The percentage will indicate the risk of bleeding problems.
Note: for genetic screening, do not test bitches in season, pregnant or lactating. Do not test unhealthy animals (with no evidence of primary clotting issues), those on medication for a recent illness, or those vaccinated within 14 days. Large breed pups can be tested at seven weeks of age. Small breed pups should be over 12 weeks of age prior to testing.