32 CANINE MEDICINE AND SURGERY 



comes purulent, constituting the condition known 

 as septic pleuritis or empyemd. In primary pleur- 

 itis the condition as a rule affects only one side of 

 the chest, while in secondary pleuritis it affects 

 both sides, but this is no hard and fast rule. 



The prognosis in primary pleuritis is generally 

 favorable, though convalescence may be slow; that 

 of the secondary variety depends entirely on the 

 primary cause, or trauma. 



Symptoms. — Pleurisy may or may not be ushered 

 in by rigors, but there is always malaise and great 

 stiffness in action, and disinclination to move or 

 bend the body, the condition being very painful. 

 The respiratory movements are painful and almost 

 entirely abdominal, the animal, on account of the 

 pain attending thoracic movement, trying to fax 

 the chest walls as much as possible. The constitu- 

 tional disturbance is great, thirst is- greatly in- 

 creased,* anorexia generally complete; the bowels 

 are costive; the urine is scanty, highly colored, and 

 contains albumin; the pulse is fast and wiry, the 

 temperature 104 to 105 degrees Fahrenheit; the 

 mucous membranes are congested. 



Until the effusion has taken place percussion 

 yields negative results. Afterwards a dull sound 

 is heard up to the level of the accumulated fluid. 



Auscultation reveals the characteristic friction 

 sounds of pleurisy, or later the fluid may be heard 

 splashing during respiration. Since the accumula- 

 tion of fluid in the pleural cavity compresses the 

 lung, sometimes to complete collapse, dyspnea is 

 always well marked when effusion has taken place, 

 and when the effusion is great symptoms of 

 asphyxia manifest themselves ; the cpmpression of 

 the heart and great blood vessels also leads to their 

 disturbed and impaired action. 



