BRONCHOPNEUMONIA 53 



Diagnosis.— The sudden onset, severe dyspnea and the 

 absence of temperature, accompanied by moist, bubbling 

 rales on auscultation are indicative. 



Prognosis.— Always unfavorable, depending upon the cause. 

 Recovery may occur in mild acute cases. 



Treatment.— Treatment must be directed first to relieve 

 the edema which threatens the life of the animal, and sec- 

 ondarily to overcome the cause. For the first purpose use 

 counterirritation to the walls of the thorax, oil of mustard 

 and glycerin (1-20) or Priesnitz compress (applied hot) ; also 

 strychnin sulphate (0.001 subcutaneously) as a heart stimu- 

 lant. Subcutaneous injections of ether (0.8), or camphor 

 (0.1) in ether (0.8) are often useful as prompt stimulants. 

 Atropin (0.002) is of value as a heart stimulant and is espe- 

 cially useful in cases of edema due to pilocarpin, being a 

 physiological antidote. 



In the treatment for the removal of the cause digitalis 

 fluidextract (0.1) is most valuable to regulate the heart 

 action. Hydragogue purgation (magnesium sulphate 8.0- 

 12.0) will remove fluid from the blood which tends to reduce 

 the exudation of serum into the lungs; also the use of a diuretic 

 (oil of juniper 0.3-0.5) for the same purpose in cases of renal 

 disease. 



BRONCHOPNEUMONIA . 



Catarrhal Pneumonia. 



Definition.— This is an affection of the lungs in which the 

 usual sequence of events is, that an inflammation of the 

 smaller bronchioles in scattered areas is succeeded by the 

 involvement of anatomically related or contiguous vesicles. 



Etiology. — (a) The inhalation of foreign material in the 

 form of small particles of dirt, dust, etc., which irritates the 

 mucous membrane and modifies the secretions, favors the 

 development of infection and leads to inflammation of the 

 bronchioli and alveoli. 



(b) Irritating chemicals and gases when inhaled produce 

 an active congestion and inflammation of the lungs. How- 

 ever, in most cases when inhaled in large quantities they act 



