Calculations for both the blood donor and the recipient.
Thomas is a 5.0 kg 6 yo MN German Shepherd. His HCT is 0.15 L/L and the vet wants to raise it to 0.18 L/L. The donor dog, Jefferson, weighs 33.3 kg and has a PCV of 43%. How much blood does Thomas need to increase his HCT to 0.18 L/L?
PCV = 43% = (43/100) L/L
Blood needed = 5.0 kg x 80 x ((0.18 - 0.15) / (43/100))
Blood needed = 27.91 mL
Thomas is a 45.4 kg 6 yo MN German Shepherd. His HCT is 0.14 L/L and the vet wants to raise it to 0.18 L/L. The donor dog, Jefferson, weighs 59.8 kg and has a PCV of 47%. How much blood can safely be collected from Jefferson?
Blood that can be collected = 59.8 kg x 90 mL/kg x 0.2
Blood that can be collected = 1076.40 mL
Alexander is a 6.3 kg male cat. His PCV is 13%. After he is stabilized, the vet asks you to collect blood from Hamilton, the 5.7 kg clinic cat, for a transfusion. He has a HCT of 0.34 L/L. How much blood does Alexander need to increase his PCV to 16%?
PCV = 0.34 L/L = (0.34 x 100)%
Blood needed = 6.3 kg x 70 x ((16 - 13) / (0.34 x 100))
Blood needed = 38.91 mL