Effects of Agitation and Storage Temperature on Measurements of Hydration Status

Conclusions: Our findings suggest agitation of urine specimen is not necessary and samples do not require refrigeration or freezing if assessed within 48 hours. Analysis within two hours of collection is not necessary and samples can be stored for up to 48 hours without impacting the hydration status of the sample.
Source: Asian Journal of Sports Medicine - Category: Sports Medicine Source Type: research