Plasma osmolality is a hydration biomarker that provides the best index of day-to-day hydration (Option C).
What is Urine osmolarity?
Urine osmolarity (also called plasma osmolality) refers to the concentration of solutes in the urine.
These osmotic solutes include, for example, urea, sodium (Na) or potassium (P), and glucose.
In conclusion, Plasma osmolality provides the best index of day-to-day hydration (Option C).
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