The avian patient poses special challenges for delivery of injectable medications. Although the techniques involved are not unique to birds, special knowledge of avian anatomy as well as delicate, proficient technical skills are required. Depending on the species, the individual, and the clinical situation, injections can be delivered by intramuscular, intravenous, intraosseous, subcutaneous, intratracheal, or intracoelomic routes. Parenteral drug administration provides the advantage of delivering a precise dose when a rapid therapeutic response is necessary. Disadvantages include stress as well as the potential irritation or pathology that can occur at the injection site.
Abdominocentesis or coelomocentesis may be indicated for the accumulation of fluid within one or more of the peritoneal cavities. Peritoneal fluid can accumulate with a variety of diseases, including chronic liver disease, amyloidosis in waterfowl, iron storage disease in mynah birds and toucans, coelomic tumors in budgerigar parakeets, viral infections like Marek’s disease (resulting in cardiac tumors), peritonitis, congestive heart failure, ovarian cysts, and trauma. This article reviews the potential complications of this clinical technique, the equipment needed, sample handling, and cytodiagnosis.