250 CHEMOTHERAPY 



allow of inspection of the fluid before it enters the vein; to the rubber 

 tubing is connected the Strauss canula or Schreiber curved needle. 

 The whole is sterilized by boiling and then washed by sterile salt solution 

 flowing through it. 



FIG. 28. First stage in the intravenous injection of salvarsan. Needle being inserted 

 into distended vein and saline solution flowing into the vessel. 



The steps in the actual injection are as follows: 



1. The patient's forearm near the median vein is disinfected (alcohol, 

 iodin, etc.). 



2. An assistant compresses the upper part of the arm of the patient 



