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Test Code URMG Urine Magnesium, 24 hour

Important Note

If ordering a random collection use order code RMG

Specimen Type

Urine, Timed (24 hour)

Container/Tube

Sterile Urine Container

Offsite Collection Instructions

1. Follow clinic instructions for 24 hour collection
process.
2. Keep urine refrigerated during the 24 hour collection process
in
a metal free container.
3. Aliquot 10 mL from a well mixed timed sample collection.
4. Indicate collection volume and duration.
5. Transport refrigerated (2-8 ° C).

Turnaround Time

24 hours

Test Includes

Quantitative determination of magnesium in urine

Preferred Volume

0.5 mL

Specimen Minimum Volume

0.2 mL

Reject Due To

N/A

DAY(S) AND TIME(S) PERFORMED

Monday – Friday

STAT DAY(S) AND TIME(S) PERFORMED

N/A

STAT Turnaround Time

N/A

Method Name

Colorimetric Endpoint Method
Spectrophotometric

Synonyms

N/A

CPT

URMG: 83735

Fee Code

URMG: 43427

Test Limitations

N/A

Test Usage

Urinary collection is valuable to detect magnesium deficiencydue
to gastrointestinal causes (eg, gut failure or Crohn’s
disease).

UCMC Collection Instructions

1. Follow clinic instructions for 24 hour collection
process.
2. Keep urine refrigerated during the 24 hour collection process
in
a metal free container.
3. Aliquot 10 mL from a well mixed timed sample collection.
4. Indicate collection volume and duration.
5. Transport refrigerated (2-8 ° C).

Reference Values

122 – 292 mg/24 hr

Additional Information

N/A

Stability: Room Temp

3 days

Stability: Refrigerated

3 days

Stability: Frozen

1 year