Laboratory: Clinical Biochemistry
Test Name:
ALBUMIN - (U)
Test Code: UALB
Clinical Information:
Test performed at:   St. Boniface Hospital and
                                   Westman Laboratory
Albumin is a non-glycosylated protein synthetized by liver parenchymal cells. Quantitatively, albumin is normally the most important protein component in plasma (>50%), CSF and urine. A small, but abnormal albumin excretion in urine is known as microalbuminuria. Causes of microalbuminuria can be glomerular, tubular or post renal. Albumin is also a marker for various forms of proteinuria. 
For latest guidelines see nephropathy (Chapter 29, sec2): 
Canadian Diabetes Association - Clinical Practice Guidelines
Collection Devices:
Collect without preservative. Refrigerate 24h and random urine specimens until analysis.
Similar lab approved leak-proof containers acceptable.
Specimen Required:
Urine: 3.0 mL

Stability 1 month refrigerated, 6 months frozen
Referral:
Urine: 3.0 mL

Stability 1 month refrigerated, 6 months frozen. Refrigerate until analysis
Requisition:
Reference Values:
24 h Collection  
Normal: < 30 mg/day
Microalbuminuria: 30 - 300 mg/day
Macroalbuminuria: > 300 mg/day
Random Collection (Male)  
Normal: < 2.0 mg/mmol creat
Microalbuminuria: 2 - 20 mg/mmol creat
Overtnephropathy: > 20 mg/mmol creat
Random Collection (Female)  
Normal: < 2.8 mg/mmol creat
Microalbuminuria: 2.8 - 28 mg/mmol creat
Overtnephropathy: > 28 mg/mmol creat
   
Can J Diabetes 2018, 42: S201 - S209 
Availability:
Weekdays
See Also:
More Information:
If random urine, specify.  If 24 h urine, measure and record volume.  Refrigerate 24h and random urine specimens until analysis.