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- Thoracocentesis in Dogs

- An ultrasound will be performed prior to thoracocentesis.
- Oxygen will be administered in lieu of anesthesia. An assistant is required to restrain the dog.
- The chest is cleaned, and clipped.
- If the procedure is diagnostic, local anesthesia will be administered.
- The area in which the needle is inserted will vary based on the location of the effusion and whether or not air or gas is present in the pleural cavity.
- A needle and syringe are inserted between the selected ribs and into the pleural cavity.
- The plunger is pulled back, drawing the fluid, air, or gas into the syringe.
- The sample is transferred to a vial.
- Extension tubing is then attached to the syringe to drain the fluid from the thoracic or pleural cavity.
- Once the fluid has been drained, the needle is withdrawn and an x-ray is taken.
- The sample is sent to a histologist for examination.
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- Hemorrhage
- Hematoma: The accumulation of clotted blood outside of a blood vessel.
- Pneumothorax
- Laceration of the artery
- Low blood pressure
