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Heavy Metal/Creatinine Ratio, with Reflex, Random, Urine

Methodology:

ASCU, CDCU, HGCU, PBCU: Triple-Quadrupole Inductively Coupled Plasma Mass Spectrometry (ICP-MS/MS)
CRETR: Enzymatic Colorimetric Assay

Performed:

Monday through Friday

Analytical Time:

2 to 4 days

Testing Laboratory:

Mayo Medical Laboratories; Rochester, MN

Laboratory Section:

Referral Testing

Heavy Metal/Creatinine Ratio, with Reflex, Random, Urine

Container/Tube Type:

Sterile Container

Collection Information:

Collect a random urine in a sterile container with no metal cap or glued insert.

Transport Information:

Transfer 6.0 mL of urine into a plastic transport vial with no metal cap or glued insert. Send refrigerated.

Minimum Sample Volume: Minimum amount of analytical sample (serum, plasma, urine, CSF, etc.) required to perform an assay once. Submitting the minimum volume makes it impossible to repeat the test or perform confirmatory or reflex testing. In some situations, a minimum specimen volume may result in a QNS (Quantity Not Sufficient) result, requiring a second specimen to be collected.

Minimum amount of analytical sample (serum, plasma, urine, CSF, etc.) required to perform an assay once. Submitting the minimum volume makes it impossible to repeat the test or perform confirmatory or reflex testing. In some situations, a minimum specimen volume may result in a QNS (Quantity Not Sufficient) result, requiring a second specimen to be collected.

3.0 mL of urine

Remarks:

1. For the 48-hour period prior to start of collection, patient should not eat seafood.
2. High concentrations of gadolinium and iodine are known to potentially interfere with most inductively coupled plasma mass spectrometry-based metal tests. If either gadolinium- or iodine-containing contrast media has been administered, a specimen should not be collected for 96 hours.

Stability Comments:

All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.

Stability

Refrigerated Stability:

7 days - Preferred

Frozen Stability:

7 days

Heavy Metal/Creatinine Ratio, with Reflex, Random, Urine

Sunquest Order Code:

HMCRUM

Epic Number: The test code used to identify this assay in Epic

LAB7220

Reference Lab Code: The test code used to identify this assay at the referral laboratory that performs this testing.

HMUCR

CPT Code:

82175; 82300; 83825; 83655; 82570

Heavy Metal/Creatinine Ratio, with Reflex, Random, Urine

Modified:

5/15/2010 12:34:50 PM