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It is important to harvest all cavitary hemorrhage cleanly into a collection apparatus as basic as clean syringes. The blood in the majority of cases will be naturally defibrinated in both dogs and cats. The collected cavitary hemorrhage may be administered without added anticoagulant through an inline blood filter to prevent administration of blood clots back to the patient (Higgs et al. 2015; Robinson et al. 2016; Cole and Humm 2019).

The question is sometimes posed regarding the older anemic hemoabdomen dog in a situation in which there are no resources for blood transfusion administration and whether leaving the blood in the abdominal cavity is acceptable. The argument is that by leaving the intraabdominal blood, the patient has the benefit of resorbing the cavitary blood postoperatively, and common sense should always prevail in the quest to improve the probability of patient survival. However, when possible, “dry the abdomen” to better interpret the clinical relevance of postoperative effusions.