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Test Code MA/CR U Microalbumin/Creatinine, Urine

Clinical System Name

Urine Microalbumin/Creatinine

Sample Requirements

Specimen: Urine

Container(s): Sterile Screw-Capped Container, Clean container is also acceptable.

Preferred Vol: 1 mL random, overnight, or 24-h collection

Minimum Vol: 1 mL


Note: No preservative required. Refrigerate specimen during collection.

Processing Instructions

Reject due to:



Temp: 2 - 8 C

Storage location:

Random: Store sample in original container with labels in the CPA refrigerator, FrigB bucket. 

24 h collection:  Place container in CPA refrigerator. Store labels in CPA refrigerator, FrigB bucket.


Off-site collection: No preservative required. Refrigerate specimen during collection. Send sample refrigerated.


Specimen Type Temperature Time
Urine Room temp 8 h
  Refrigerated 2 w
  Frozen N



STAT Performed TAT
N M, W, F 1 - 5 d


Performing Laboratory

Seattle Children's Laboratory    



Department:  Chemistry

Location: Chem East

Phone Number: (206) 987-2617




Reference Range

Albumin 0 - 19 mg/L

Microalbumin/Creatinine Ratio 0 - 21 mg/g



Method: Turbidimetric by DCA

Analytical Volume: 1 mL


CPT Codes

82043, 82570