Tag: Serum osmolality

According to the National Institutes of Health, a single definitive test for diagnosing dehydration does not exist, with diagnosis relying on clinical signs and a combination of laboratory tests. So, what blood test indicates dehydration and helps doctors confirm a diagnosis? A comprehensive look at multiple blood test markers is necessary to assess fluid balance.

According to a 2022 study, monitoring hydration status with biomarkers like salivary osmolality and urine specific gravity is crucial for athletes to prevent performance decline. But what exactly are hydration markers, and how do they reveal your body's fluid balance? These are physiological and biochemical indicators that help assess whether an individual is adequately hydrated (euhydrated), underhydrated (hypohydrated), or overhydrated (hyperhydrated).