#ExistPATIENTPREP>Patient Prep: Avoid exposure to gadolinium-based contrast media for 48 hours prior to specimen collection.
*ExistPATIENTPREP>
#ExistCollect>Collect: Random urine in a trace metal-free container.
*ExistCollect>
#ExistSPECIMENPREPARATION>Specimen Preparation: Transfer 1 mL urine to a foil-wrapped ARUP Trace Element-Free Transport Tube (ARUP supply #43116). (Min: 0.5 mL) Protect from light.