It is defined as  decrease in the red cell mass due to loss, destruction, or lack of production of RBCs.






The bone marrow responds properly to the decreased red cell mass by increasing RBC production and releasing reticulocytes

Hemorrhage or hemolysis




Decreased erythropoietin or an abnormality in the bone marrow


Clinical Findings


 Acute anemia 


Death may occur if more than a third of the blood volume is lost speedily and not substituted.


  • Tachycardia


  • Pale mucous membranes
  • Bounding or weak peripheral pulses

 Chronic anemia 

  • lethargy
  • weakness
  • anorexia

Diagnosis of Anemia in Animals


Clinical Evaluation


A complete history is an important part of the evaluation of an anemic animal.

  • duration of clinical signs,
  • history of exposure to toxins (eg, rodenticides, heavy metals, toxic plants),
  • drug treatments,
  • vaccinations,
  • travel history,
  • any prior illnesses.

Serologic Testing


A CBC, including a platelet and a reticulocyte count, will deliver information on the

severity of anemia and degree of bone marrow response

A blood smear should be evaluated for:

  • abnormalities in RBC morphology
  • size
  • RBC parasites.

Anemia can be defined as regenerative or nonregenerative and is based on classic findings noted on a CBC or blood smear evaluation.

Leave a Reply

Your email address will not be published. Required fields are marked *

You have successfully subscribed to the newsletter

There was an error while trying to send your request. Please try again.

will use the information you provide on this form to be in touch with you and to provide updates and marketing.