What diagnostic test is indicated when hyphema is present in a case of uveitis?

In a case of uveitis accompanied by hyphema, a coagulation panel is indicated because the presence of blood in the anterior chamber may suggest a coagulopathy or bleeding disorder. Uveitis itself can occur secondary to systemic diseases, including those that affect coagulation. A coagulation panel helps to assess the blood’s clotting ability and can identify potential issues that might lead to hyphema, such as thrombocytopenia, liver dysfunction, or clotting factor deficiencies. By performing this diagnostic test, a veterinarian can pinpoint if there is an underlying systemic issue contributing to the ocular condition, guiding treatment decisions effectively.

Other diagnostic options, such as radiographs and ocular ultrasound, are relevant in different clinical contexts but do not directly address the concerns surrounding hyphema caused by potential hematological issues. The Poisson test is not a standard diagnostic test related to ocular conditions but rather a statistical approach, further emphasizing why it is not appropriate in this scenario.