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Order Code MISMA - GOKEY MNCRU Manganese/Creatinine Ratio, Random, Urine

Additional Codes

Mayo Test ID:  MNCRU

Reporting Name

Manganese/Creat Ratio, Random, U

Useful For

Monitoring manganese exposure


Nutritional monitoring


Clinical trials

Specimen Type


Specimen Required

Collection Container/Tube: Clean, plastic urine collection container

Submission Container/Tube: Plastic, 10-mL urine tube (T068) or clean, plastic aliquot container with no metal cap or glued insert

Specimen Volume: 3 mL

Collection Instructions:

1. Collect a random urine specimen.

2. See Trace Metals Analysis Specimen Collection and Transport in Special Instructions for complete instructions.

Additional Information: High concentrations of gadolinium and iodine are known to interfere with most metals tests. If either gadolinium- or iodine-containing contrast media has been administered, a specimen should not be collected for 96 hours.

Specimen Minimum Volume

0.8 mL

Specimen Stability Information

Specimen Type Temperature Time
Urine Refrigerated (preferred) 28 days
  Frozen  28 days
  Ambient  7 days

Reject Due To









Reference Values

<4.0 mcg/g creatinine

Reference values have not been established for patients that are <18 years of age.

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Day(s) and Time(s) Performed

Tuesday, Friday; 8 a.m.

Method Name

MNCR: Dynamic Reaction Cell-Inductively Coupled Plasma-Mass Spectrometry (DRC-ICP-MS)

CDCR: Enzymatic Colorimetric Assay

Test Classification

See Individual Test IDs

CPT Code Information

83785 Manganese Concentration

82570 Creatinine Concentration

LOINC Code Information

Test ID Test Order Name Order LOINC Value
MNCRU Manganese/Creat Ratio, Random, U 27367-2


Result ID Test Result Name Result LOINC Value
CDCR Creatinine Conc 2161-8
32867 Manganese/Creat Ratio, U 27367-2

Profile Information

Test ID Reporting Name Available Separately Always Performed
MNCR Manganese/Creat Ratio, U No Yes
CDCR Creatinine Conc No Yes