The electrolyte quadruple test focuses on blood potassium, blood sodium, blood chloride, and blood calcium. The electrolyte test is used to observe whether the patient has electrolyte disorders, so that timely correction can be given. When the patient has a lot of sweating, gastroenteritis, diarrhea, and dehydration, it can lead to electrolyte disorders in the body. When patients have hyponatremia, hypokalemia, hypochlorhydria, hypocalcemia, it will cause various discomfort symptoms in the body, such as panic, chest tightness, weakness, etc. Some patients will also have twitching of the limbs. Through electrolyte examination, electrolytes are detected in time and supplementation is given. If the patient has high electrolytes, corresponding medication will be given in time to reduce the patient’s discomfort symptoms, and some serious electrolyte disorders will be treated actively to prevent fatal damage.