The purpose is to check electrolyte, fluid or pH imbalance. It is performed as routine check-ups. The tests include sodium, potassium, chloride, bicarbonate BUN, creatinine and glucose tests. These measurements are helpful in providing causes of electrolyte imbalances such as dehydration, kidney disease, lung diseases, or heart conditions. Electrolyte and pH imbalance can cause number of diseases and common symptom of these disorders are fluid accumulation, nausea or vomiting, weakness, confusion, irregular heartbeat.