What is Sodium (Na+) in terms of Nursing Labs?
Sodium (Na+) is the most abundant cation in extracellular fluid. Sodium aids in osmotic pressure, renal retention and excretion of water, acid-base balance, regulation of other cations and anions in the body, plays a role in blood pressure regulation, and stimulation of neuromuscular reactions. Sodium and water have a direct relationship; Water follows salt.
What would cause increased levels of Sodium?
- Cushing Syndrome
- Burn injury
- Azotemia (elevated nitrogen)
- Lactic acidosis (LA)
- Fever/excessive sweating
- Excessive IV fluids containing sodium
- Diabetes Insipidus
- Osmotic diuresis
What would cause decreased levels of Sodium?
- Congestive Heart Failure (CHF)
- Syndrome of Inappropriate Antidiuretic Hormone (SIADH)
- Cystic Fibrosis
- Diuretic use
- Metabolic acidosis
- Addison Disease
- Nephrotic Syndrome
- Excessive Antidiuretic Hormone(ADH)
- Liver failure
Date Published - Aug 4, 2016
Date Modified - Jun 21, 2019