It will also measure the levels of urea, which is produced in the liver when excess amino acids are broken down. A U&E test will measure the levels of electrolytes and give an indication of dehydration. If you are dehydrated then it can cause an imbalance in your electrolytes. The right balance of electrolytes (dissolved body salts like sodium, potassium and chloride) are important in helping your body’s blood chemistry, muscle action and other processes.
People who are suffering with acute diarrhoea can often become dehydrated.
