The use of medications such as diuretics as well as medical conditions such as decreased liver and kidney function lead to low sodium levels in the blood, or hyponatremia, in older adults, states Mayo Clinic. Other risk ... More »

Elderly patients with low sodium levels are usually asymptomatic, although headaches, nausea, confusion and respiratory arrest show up in severe conditions, according to Kugler and Hustead for the American Family Physici... More »

Low blood sodium concentration is referred to as hyponatremia; it is dangerous because it may cause brain swelling, which may lead to seizures, comma or even death, explains BootsWebMD. Mild hyponatremia can cause nausea... More » Health Medical Ranges & Levels

Low sodium in the blood, or hyponatremia, has several possible causes, including certain medications, syndrome of inappropriate anti-diuretic hormone, hormonal changes and heart, kidney or liver conditions. Other sources... More »

People can prevent hyponatremia, or low levels of sodium in the blood, by treating other conditions that lead to hyponatremia, learning about their condition, taking precautions when engaging in activities that lead to f... More »

The causes of low sodium levels include drinking too much water; disorders of the heart, liver or kidney; and certain medications such as diuretics, according to the Mayo Clinic. Conditions that cause chronic vomiting ca... More »

The causes of low sodium levels in the blood include certain medications, kidney, heart or liver problems, and chronic and severe vomiting or diarrhea, explains Mayo Clinic. When sodium levels drop slowly, the condition ... More »