#ExistCollect>Collect: 24-hour urine. Refrigerate during collection. Also acceptable: Random urine (no reference intervals).
*ExistCollect>
#ExistSPECIMENPREPARATION>Specimen Preparation: Transfer 2 mL aliquot from a well-mixed 24-hour urine to an ARUP Standard Transport Tube. (Min: 0.5 mL)