#ExistCollect>Collect: 24-hour urine. Specimen must be refrigerated during collection. Also Acceptable: Random urine (no reference intervals).
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#ExistSPECIMENPREPARATION>Specimen Preparation: Mix 24 hour urine collection well. Transfer 4 mL to an ARUP Standard Transport Tube. (Min 0.5 mL) Record total volume and collection time interval on transport tube and test request form.