Sign in →

Test ID MAGR Magnesium, Random, Urine

Method Name

Only orderable as part of a profile. For more information see SSATR / Supersaturation Profile, Random, Urine.

 

Colorimetric Endpoint Assay

Reporting Name

Magnesium, Random, U

Specimen Type

Urine


Specimen Required


Only orderable as part of a profile. For more information see SSATR / Supersaturation Profile, Random, Urine.

 

Collection Container/Tube: Plastic urine container

Submission Container/Tube: Plastic, 5-mL tube (T465) or a clean, plastic aliquot container with no metal cap or glued insert

Specimen Volume: 4 mL

Collection Instructions:

1. Collect a random urine specimen.

2. No preservative.


Specimen Minimum Volume

1 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Urine Refrigerated (preferred) 14 days
  Frozen  30 days
  Ambient  72 hours

Reference Values

Only orderable as part of a profile. For more information see SSATR / Supersaturation Profile, Random, Urine.

 

1 month-<12 months: 0.10-0.48 mg/mg creat

12 months-<24 months: 0.09-0.37 mg/mg creat

24 months-<3 years: 0.07-0.34 mg/mg creat

3 years-<5 years: 0.07-0.29 mg/mg creat

5 years-<7 years: 0.06-0.21 mg/mg creat

7 years-<10 years: 0.05-0.18 mg/mg creat

10 years-<14 years: 0.05-0.15 mg/mg creat

14 years-<18 years: 0.05-0.13 mg/mg creat

18 years-83 years: 0.04-0.12 mg/mg creat

Reference values have not been established for patients who are less than 1 month of age.

Reference values have not been established for patients who are greater than 83 years of age.

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information

83735

LOINC Code Information

Test ID Test Order Name Order LOINC Value
MAGR Magnesium, Random, U 19124-7

 

Result ID Test Result Name Result LOINC Value
MGCON Magnesium, Random, U 19124-7
MGCTR Magnesium/Creatinine Ratio 13474-2

NY State Approved

Yes

Test Classification

This test has been cleared, approved or is exempt by the U.S. Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

Useful For

Assessing the cause of abnormal serum magnesium concentrations

 

Determining whether nutritional magnesium loads are adequate

 

Calculating urinary calcium oxalate and calcium phosphate supersaturation and assessing kidney stone risk from a random urine collection

Day(s) Performed

Monday through Friday

Report Available

Same day/1 to 3 days