3IO 



Chapter XXV 

 BLACKWATER FEVER 



Diagnosis. — Attention should be paid to the 

 following points : — 



(i) Haemoglobinuria. — The colour of the urine 

 may vary from a very light red to a dark porter 

 colour. 



(2) Jaundice. — Varying from a pale lemon 

 yellow to a deep bronze. 



(3) Constitutional disturbance. — Slight, or 

 extremely severe, with a high temperature, vomit- 

 ing of green bile, sudden anaemia, pain over 

 kidneys and gall bladder, collapse. 



We believe that careful observation of these 

 points will reveal the existence of blackwater 

 fever in many places where it is not supposed to 

 exist. 



Examination of the Blood in Blackwater 

 Fever 



1. Note the difficulty in obtaining a full- 

 sized drop of blood. 



2. Observe the ' thin ' nature of the blood 

 drop, its ' oily ' nature, and the difficulty with 

 which it adheres to the slide. These properties 

 are best seen in severe cases. 



3. Collect a specimen in a fine pipette and 



