Specimen Type/Requirements

Gold or Red top (Serum w/gel or w/out gel) tube - Serum

or

Light Green top (Lithium Heparin w/gel) tube - Plasma

and 

24 Hour Urine Container - Urine, aliquot from a well mixed and measured 24 Hour Urine

Refrigerate urine during collection.  Include patient's height, weight and 24 hour urine total volume on specimen and order. 

Note: Blood specimen may be drawn up to 24 hours before the start or up to 24 hours after the completion of the 24 hour urine collection.

See 24-Hour Urine Collection Instructions English

See 24-Hour Urine Collection Instructions Spanish

Test is affected by hemolysis.  Test is not affected by lipemia.