A study published in the Journal of Small Animal Practice has concluded that intravenous fluid therapy may be unnecessary for cats that have given blood.

This, say the authors, could lead to shorter hospitalisation time and less stress for donor cats.

For the study, researchers at the Royal Veterinary College measured the systolic blood pressure of 100 client-owned cats which had been randomly assigned to receive IVFT or no fluid after blood donation. 

Owners were also contacted following donation to record any changes in their cat.

The results showed no significant difference in blood pressure between cats that received post-donation IVFT and those that didn't.

The main reported changes were minor bruising at the venepuncture site and mild lethargy, with no significant difference between the IVFT and no-IVFT groups.

These findings suggest that IVFT post-blood donation may not be necessary, as haemodynamic stability appears to be maintained despite the loss of blood.

Dr Guedra Allais, lead author of the study, said: "Our study showed no significant difference in blood pressure at different time points in feline donors that received intravenous fluid compared to others that didn’t receive any fluid.

"Other perfusion parameters such as capillary refill time, heart rate and pulse quality were not evaluated, and we recommend considering intravenous fluid in any feline donors if any major changes are detected on post donation physical examination.”

Reference

  1. Guedra Allais, M. and Humm, K. (2024), Intravenous fluid therapy compared to no treatment following blood donation in cats: a randomised controlled. J Small Anim Pract. https://doi.org/10.1111/jsap.13760

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