Hypotension is the medical term for low blood pressure (less than 90/60). A blood pressure reading appears as two numbers. The first and higher of the two is a measure of systolic pressure, or the pressure in the arteries when the heart beats and fills them with blood. Related symptoms are Dizziness or lightheadedness; Fainting; Blurred or fading vision; Nausea; Fatigue; Lack of concentration, shock. Low blood pressure is a reading of less than 90/60mmHg. Treatmnets to be used ,Use more salt. Experts usually recommend limiting salt in your diet because sodium can raise blood pressure, sometimes dramatically. ...Drink more water. Fluids increase blood volume and help prevent dehydration, both of which are important in treating hypotension,Wear compression stockings,Medications. Rising slowly from a sitting or lying position may help ease symptoms. Avoiding alcohol, drinking plenty of water and eating small, low-carbohydrate meals along with fruits and vegetables may also help. There are plenty of natural ways and lifestyle changes to raise low blood pressure, including the following lifestyle changes. The cause of low blood pressure can be determined with blood tests, radiologic studies, and cardiac testing to look for heart failure and arrhythmias.