Blood Donor Requirements, Responsibilities, & Registration


If your pet meets the below requirements, they could be a VSCNL dog or cat hero:

  • Between 1 – 8 years of age with good disposition and no medical conditions,
  • Up to date with vaccines,
  • Not on any medication that could pose a problem for the recipient,
  • Have never received a blood or plasma transfusion,
  • Healthy weight – not over or under weight (Cats 10 lbs or more, Dogs 50 lbs or more)
  • Receive heartworm, internal parasite, and tick prevention medications (recommended, but not required)

Donors who have spent time outside of Canada and the continental U.S. may not pass the pre-screening process. VSCNL is not stating there is a risk in a particular region. However, visiting different parts of the world could put your pet at greater risk of exposure to diseases. To protect blood recipients, our screening process must take this into consideration.

Successful donor’s laboratory results must indicate:

  • One of the two blood types that can be used for donations
  • Normal complete blood count and biochemical profile
  • Cats must test negative for Feline Immunodeficiency Virus and Feline Leukemia Virus

Owner Responsibilities:

We request clients answer the questions asked during the pre-screening process to the best of their ability. If an owner cannot confidently provide details on their pet’s history, please inform us. Each animal that receives a blood transfusion already has a compromised health status. The pre-screening process is to put in place to ensure a blood transfusion does not add additional risk to each patient’s health status.

If we determine your pet is a successful donor, we request you ensure your pet can:

  • Donate once every 3 months
  • Remain in the Program for at least 2 years
  • Be available for emergency donations, if possible
  • Allow pictures of your pet in various marketing and social media advertisements


Complete a VSCNL Blood Donor Program application. If you have questions, please email

Screening Process

Within a week of receiving your registration application, we will contact you to discuss the donor process and conduct a preliminary phone interview.

If required, we will ask you contact your primary care veterinarian and request they email your pet’s medical records to We do not have the authority to request your pet’s medical records.

Once received, we will review the medical record to validate if your pet meets the donor requirements. If so, we will then contact you to book a blood donation appointment. During the appointment, we will conduct laboratory testing to confirm your pet’s health status.