Clinical features

• recent illness
• diarrhoea and vomiting ^c  
• sweating ^c  
• fluid intake ^d
  
  
• current medical problems
  • heart failure ^c  
  • renal disease ^c  
  • liver failure and ascites ^c  
  • diabetes mellitus ^c  
  • any psychiatric problems ^c  
    
    
• current medication (particularly diuretics, NSAIDs, antibiotics) ^c  

Look for evidence of oedema or dehydration ^c 

• When assessing for dehydration, look for ^a  
  • sunken eyes
  • dry axillae
  • dry nose or mouth mucous membranes
  • longitudinal furrows on the tongue