Sodium (fingerstick)

What is Sodium?

Sodium is an essential mineral that plays a crucial role in the human body, particularly in regulating fluid balance and supporting nerve and muscle functions. It is primarily found in the blood and the extracellular fluid surrounding cells.

Why have Sodium tested?

Testing sodium is important to assess the balance of electrolytes in the body and to aid in the diagnosis of conditions that affect water and salt balance, such as dehydration, kidney disease, or heart failure. It can also be useful in assessing symptoms like fatigue, headache, confusion, and nausea, which may indicate an electrolyte disorder.

What does it indicate?

The sodium level in the blood helps in evaluating a person's hydration status and the function of the kidneys and adrenal glands. It also provides insight into how the body handles electrolytes, which is essential for maintaining healthy blood pressure and the proper functioning of muscles and nerves.

What does a high Sodium level mean?

A high sodium level, known as hypernatremia, may indicate dehydration, certain kidney diseases, or excessive salt intake. It may also be associated with conditions that affect the body's water balance, thus increasing the risk of hypertension and heart disease.

What does a low Sodium level mean?

A low sodium level, or hyponatremia, may indicate overhydration, kidney failure, heart failure, or the use of certain medications. It can also cause symptoms such as fatigue, confusion, headache, and in severe cases, seizures.