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Test Code ALB24 Albumin, 24 Hour, Urine


Necessary Information


24-Hour volume is required.



Specimen Required


Supplies: Urine Tubes, 5 mL (T465)

Container/Tube: Plastic urine tube

Specimen Volume: 4 mL

Collection Instructions:

1. Collect urine for 24 hours.

2. Refrigerate specimen within 4 hours of completion of 24-hour collection.

3. Mix well before taking 4-mL aliquot.

Additional Information: See Urine Preservatives-Collection and Transportation for 24-Hour Urine Specimens in Special Instructions for multiple collections.


Useful For

Evaluating diabetic patients to assess the potential for early onset of nephropathy

Reporting Name

Albumin, 24 Hr, U

Specimen Type

Urine

Specimen Minimum Volume

1 mL

Specimen Stability Information

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

Reference Values

24-Hour excretion: <30 mg/24 hours

Excretion rate: <20 mcg/min

Day(s) and Time(s) Performed

Monday through Sunday; Continuously

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Test Classification

This test has been modified from the manufacturer's instructions. Its performance characteristics were determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.

CPT Code Information

82043

LOINC Code Information

Test ID Test Order Name Order LOINC Value
ALB24 Albumin, 24 Hr, U 1755-8

 

Result ID Test Result Name Result LOINC Value
AL24H Albumin, 24 Hr, U 1755-8
TM43 Collection Duration 13362-9
VL41 Urine Volume 3167-4
RATE2 Albumin Excretion Rate 58448-2

Urine Preservative Collection Options

Note: The addition of preservative or application of temperature controls must occur within 4 hours of completion of the collection.

Ambient

OK

Refrigerate

Preferred

Frozen

OK

50% Acetic Acid

No

Boric Acid

OK

Diazolidinyl Urea

No

6M Hydrochloric Acid

No

6M Nitric Acid

No

Sodium Carbonate

No

Thymol

OK

Toluene

No

 

Method Name

Immunoturbidity

Forms

If not ordering electronically, complete, print, and send a Renal Diagnostics Test Request (T830) with the specimen.