A cat presents to a clinic with difficulty breathing, lethargy, and cyanosis. The veterinarian auscultated the thoracic cavity and politely asked to have a radiograph taken of the thorax. Dx: pleural effusion. A thoracocentesis was performed and 300 cc of fluid was aspirated. Rx: Bronchodilator BID. Lethargy is:

A) drowsiness or indifference
B) icterus
C) comatose
D) recumbent
E) ptyalism

A