114 CHOKING. 
the breathing quickens; the pulse fails, and the animal (if not relieved) 
perishes from suffocation, induced by tympanitis. 
For low choke more time than nature allows, when the impediment is 
situated near the mouth, may be occupied. No hurry nor any speedy 
remedy is required. Give oil, by the quarter of a pint, every hour. In 
the intermediate half hours give strong antispasmodics, using the horse 
probang after every dose of the latter. Sulphuric ether, two ounces; 
laudanum, two ounces; water, half a pint, will constitute the proper 
drench. Should the whole be returned, chloroform must be administered, 
by inhalation, till total insensibility results. Then, the head being ex- 
tended, the probang should be introduced, and gentle but steady pressure 
made to force the obstruction onward. If success comes early, it is easily 
welcomed ; but it is well not to expect success before the expiration of 
twenty minutes. When movement is felt, do not increase the force. 
: 3 
oe ps sy 
THE LOW CHOKE. 
Maintain a steady pressure, never relaxing and never augmenting the 
power exerted. Drive the substance slowly before you, but do not, by 
sudden energy, risk either the provocation of spasmodic action or a 
rupture of the esophagus. 
Before using the probang, always calculate the length of the whale- 
bone, so as to judge when the end has nearly entered the stomach. It 
is always well, if possible, to avoid forcing the end of the probang through 
the cardiac opening, as the termination of the esophagus is called. The 
muscular fibers here are strongly developed, and are formed to resist the 
passage of any substance out of the stomach. To be sure, the animal is 
under the influence of chloroform; but that powerful agent seems more 
particularly to exert its action upon the voluntary muscles; whereas, the 
cardiac orifice is guarded by white, involuntary muscular fiber. 
