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Order Code MNRCU Manganese/Creatinine Ratio, Random, Urine


Specimen Required


Patient Preparation: 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

Supplies: Urine Tubes, 10 mL (T068)

Collection Container/Tube: Clean, plastic urine collection container with no metal cap or glued insert

Submission Container/Tube: Plastic, 10-mL urine tube 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 Metals Analysis Specimen Collection and Transport for complete instructions.


Useful For

Monitoring manganese exposure using random urine specimens

 

Nutritional monitoring

 

Clinical trials

Profile Information

Test ID Reporting Name Available Separately Always Performed
MNCU Manganese/Creat Ratio, U No Yes
CRETR Creatinine, Random, U No Yes

Method Name

MNCU: Triple-Quadrupole Inductively Coupled Plasma Mass Spectrometry (ICP-MS/MS)

CRETR: Enzymatic Colorimetric Assay

Reporting Name

Manganese/Creat Ratio, Random, U

Specimen Type

Urine

Specimen Minimum Volume

2 mL

Specimen Stability Information

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

Reject Due To

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

Reference Values

MANGANESE

0-17 years: Not established

≥18 years: <4.0 mcg/g creatinine

 

CREATININE

0-17 years: Not established

≥18 years old: 16-326 mg/dL

Method Description

The metal of interest is analyzed by triple-quadrupole inductivelycoupled plasma mass spectrometry.(Unpublished Mayo method)

Day(s) Performed

Monday

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information

82570

83785