GASTRO-ENTERITIS FROM CAUSTIC ALKALIES AND ALKALINE SALTS.

Ammonia: Counter-irritation, fauces, larynx, bronchia, congestion and

softening of the gastric mucosa, loose blood clots, solution of

globules, dysphagia, salivation, in carnivora and omnivora vomiting,

diarrhœa, white fumes with muriatic acid.—Ammonia carbonate: less

corrosive, same symptoms.—Potash lye, deep corrosion, gastric

congestions, fluid, blackish red blood.—Soda lye.—Carbonates of potash

and soda, less violent, tests for potash and soda. Treatment: weak

acids, demulcents, anodynes.

=Aqua Ammonia.= Lethal dose pure, horse 1 oz. and upward; cattle 2 ozs.;

dog ½ dr. There may be sudden death from abstraction of water and

cauterization of the fauces and larynx including at times the bronchial

mucosa. In other cases death occurs later from gastro-enteritis, the

mucosa of the alimentary canal being congested, softened and covered

with bloody mucus. The blood in the vessels is of a dark red, coagulates

imperfectly and the blood globules are dissolved changing the color to

black, and then brownish red. Prior to death there is great distress,

salivation, inability to swallow, swollen tongue, frequent pulse and

respiration, cough, spasms, and sometimes the odor of ammonia. Retching

and vomiting may be a feature in carnivora and omnivora, and diarrhœa if

the case is not promptly fatal. The urine is not rendered alkaline.

White fumes with muriatic acid indicate ammonia.

=Ammonia Carbonate= gives rise to the same symptoms and lesions with the

exceptions that there is less corrosion of the mucosa, and no pure

ammonia exhales in the breath.

=Caustic Potash, Lye.= Lethal dose, 5 grs. dog intervenous. In strong

solution this is one of the most potent caustics, which penetrates

deeply into the tissues and abstracting water cauterizes everything with

which it comes in contact. It therefore produces the most destructive

changes on the walls of the stomach, and intestines, with violent

gastro-enteritis, retching, or vomiting of alkaline matters. The

congested, ashen and even black color of the tongue, and (post mortem)

of the gullet, stomach and intestines, and the intense alkalinity of

contents are characteristic. The blood is fluid, gelatiniform, and

blackish red. Later, erosions and contractions are common.

=Caustic Soda= is only less destructive than potash, and produces the

same general lesions and symptoms.

The =Carbonates of Potash and Soda= have the same general properties

only they act with very much less energy. Potassium can be recognized by

its purple color in an alcohol or Bunsen flame and sodium by an intense

yellow.

_Treatment._ Weak acids (acetic, vinegar, citric, malic, lactic, boric,

benzoic, salicylic) or the stronger mineral acids largely diluted.

Mucilaginous solutions (flaxseed, elm bark, gruel, mallow). Anodynes

(opium).

Text book of veterinary medicine, Volume 2 (of 5) · 第 122 / 308 题