214 Veterinary Medicine. 



blood globules and even tubular coagula representing the 

 uriniferous tubes and entangling the blood cells. This is com- 

 plicated by albnminuria. 



Course. Duration. The congestion is short lived. It speedily 

 undergoes resolution with the passage of normal, clear urine, and 

 the recovery of appetite and spirit, or it becames rapidly aggra- 

 vated, with continuous suffering and colic, complete loss of appe- 

 tite, dullness, constant decubitus, weakness, debility, small or 

 imperceptible pulse, palpitations, darker color and perhaps com- 

 plete suppression of urine, and stupor or other nervous disorder. 

 Death may occur on the fourth to the sixth day. It may be 

 delayed by a partial recovery followed by a relapse. 



Diagnosis. Acute renal congestion is distinguished from 

 nephritis by the suddenness of the onset, the absence of fever . 

 and the comparative absence of tenderness of the loins, and of 

 tubular casts. 



From hcBmoglobincemia it is distinguished by the absence of the 

 conditions under which that affection appears : — ^the previous 

 heavy work and full rich feeding, the day or more of complete 

 rest on full ration, and the sudden exercise following. The hind 

 parts in hsemoglobinsemia are benumbed, paretic, or paralytic 

 and not unfrequently rigid and swollen, and the brownish or 

 reddish urine contains haemoglobin in amorphous particles, and 

 not red blood globules and sanguineous tubular casts as in renal 

 congestion. 



From laminitis it is distinguished by the absence of high fever, 

 by the absence of the advance of the fore feet resting on the 

 heels, of the heat and tenderness of the feet, by the ability to 

 bear the lifting of one fore foot, or the tap of a hammer on the 

 toe, by the lack of improvement after the first few steps as is 

 seen in laminitis, and by the absence of the strong pulsations 

 in the digital arteries. 



From indigestion it is distinguished by the absence of the his- 

 tory which leads up to that condition, of abdominal tympany, of 

 rumbling, of impaction and of frequent attempts to defecate, and 

 by the presence of the stiffness, straddling, and the blood globules 

 and albumen in the urine of low density. 



Prevention. This must be sought by the avoidance of all the 

 factors of causation :-— autointoxication in contagious diseases, 



