METHOD OF MAKING INTRAVENOUS INOCULATION 



61 



and side of the neck. A small incision is made midway between the 

 middle line of the neck and the tip of the fore-shoulder. With super- 

 ficial dissection a prominent vein appears; this vein is picked up with 

 fine forceps and the injection is readily given through a fine needle. 



Horse. 1. Horses are usually injected in the external jugular vejn. 



2. The hair of the neck in the region of the site of inoculation should 

 be clipped and thoroughly scrubbed with a hot solution of lysol. 



FIG. 32. INTRAVENOUS INOCULATION OF HORSE. 



The operator causes the vein to distend and become prominent by pressure with 

 the left hand. The needle is entered beneath the skin and is pushed upward for an 

 inch or more before the vein is entered. When withdrawn, this tunneled passage 

 closes and prevents bleeding. Larger injections may be given in the same manner 

 by gravity. 



3. The horse should be held by an assistant; if the animal is vicious, 

 the injections should be given in a specially constructed stall. 



4. The vein is distended by the operator, who grasps the region with 

 his left hand, the thumb being directly over the vein (Fig. 32). 



5. The needle is inserted beneath the skin, and passed upward for 

 a short distance, and then thrust into the vein. 



