Test Details

Mnemonic

MGUCR

Ordering Code

3400288

CPT-4 Code(s)

83735, 82570

Specimen Information

Collect

Random urine

Specimen Preparation

Adjust pH to <3.0 with 6N HCl. Mix urine well and send a 10.0 mL aliquot in a screw capped urine cup. Refrigerate urine during and after collection.

Minimum Volume

0.5 mL

Transport Temperature

Refrigerate

Stability

Room temperature: 4 days
Refrigerated: 7 days
Frozen: 90 days

Methodology

Inductively Coupled Plasma/Mass Spectrometry (ICP/MS)
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Reference Range

Magnesium, Random Urine
Adult 22-130 mg/g creat
Creatinine, Random Urine
≤6 Months 2-28 mg/dL
7-11 Months 2-31 mg/dL
1-2 Years 2-110 mg/dL
3-8 Years 2-130 mg/dL
9-12 Years 2-160 mg/dL
>12 Years Male 20-320 mg/dL
>12 Years Female 20-275 mg/dL
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Performing Laboratory

Quest SJC
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