What does Na indicate in laboratory results?

In laboratory results, "Na" denotes sodium. This abbreviation comes from the Latin word "Natrium," which is the origin of the chemical symbol for sodium on the periodic table. Sodium is an essential electrolyte that plays a critical role in various bodily functions, including maintaining fluid balance, transmitting nerve impulses, and muscle contractions. Understanding this abbreviation is crucial for interpreting laboratory results, as sodium levels can significantly impact a patient's health. Elevated or decreased sodium levels can indicate various medical conditions, such as dehydration, kidney disease, or adrenal gland disorders, making it vital for healthcare professionals to monitor and evaluate these levels carefully.