Manganese/Creatinine Ratio, Random Urine

Test Overview

Test Methodology

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

Test Usage

Detecting toxic manganese exposure

Reference Range *

> or =18 years: <4.0 mcg/g creatinine. Reference values have not been established for patients that are <17 years of age.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Limitations

Contamination of urine is possible because the usual daily excretion rate is low and manganese-containing dust is common.

Test Details

Days Set Up

Tuesday

Analytic Time

3 - 9 days

Soft Order Code

MNRCU

MiChart Code

Manganese Creatinine Ratio, Random Urine

Synonyms

MN-RU
Manganese, Random Urine

Laboratory

Sendout

Reference Laboratory

Mayo MNRCU

Section

Special Testing

Specimen Requirements

Collection Instructions

Collect urine in a clean, plastic container with no metal cap or glued insert and no preservative. Collection must take place prior to or 48 hours after administering gadolinium-containing contrast media.

Contraindications

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.

Normal Volume

3 mL urine

Minimum Volume

0.8 mL urine

Storage Temperature

Refrigerated preferred, ambient or frozen acceptable

Additional Information

Test performed by Mayo Clinic Laboratories.

Billing

CPT Code

82570, 83785

Fee Code

AA178