Urine Tiiping 



Urine specimen 



Centrifuge to clear of debris 



T 



1 



Lauer clear urine over •hoping' sera 



T 



i n m 



n rr rr 



±J W \-l 



Positive reaction in form of a pre- 

 cipitate — generality within a few 

 minutes — in tube of homologous ti|pe. 

 (tu,pe H in this case). 



Failure of reaction to occur is of no 

 significance as to tijpe of organism. 



Urine precipitin "raping 



Time -15-20 minutes. 



Courtesy of Massachusetts Department of Public Health 

 CHART 3. THE URINE METHOD OF TYPE DETERMINATION 



