Red blood cells
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There are no specific packed cell volume guidelines as to when to transfuse an animal with red blood cell containing products.

The decision to transfuse is based on the clinical condition of the patient and the chronicity of the anaemia.

For example, a cat with chronic non-regenerative anaemia due to bone marrow disease may be stable with a PCV of 10%, whereas a cat with acute haemorrhage due to a RTA could be very unstable with a PCV of 15% and in need of emergency blood transfusion.

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