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Test Code UMALBR or LAB689 Albumin / Creatinine Ratio, Random, Urine

Important Note

The urine (micro) albumin/creatinine ratio is more sensitive than the urine protein/creatinine ratio and can detect renal disease sooner.

The National Kidney Foundation guidelines for the management of patients with diabetes and microalbuminuria recommend that all type 1 diabetic patients older than 12 years and all type 2 diabetic patients younger than 70 years have their urine tested for albuminuria yearly when they are under stable glucose control.

Profile Information

Test ID Reporting Name Available Separately? Always Performed?
MICROALBUR Albumin, Urine, Random Y Y
UCRER Creatinine, Urine, Random Y Y
UMALBR Albumin/Creatinine Ratio NA Y

 

Specimen Requirements

Container Type:

Sterile urine cup

 

 or 

*First AM void is preferred
Optimal Collection Volume: 

5 mL
Minimum Volume:

1 mL
Collection Instructions:

1. Collect a random urine specimen from the patient.

2. Ensure the lid is secured tightly before sending it to the lab.

3. Ensure that no preservatives are used.
Specimen Transport:

Refrigerate
Processing Instructions: 

1. Pour off urine into a labeled aliquot tube.

2. Centrifuge the urine aliquot.

3. Deliver the urine aliquot to the chemistry department.

Specimen Stability

Specimen Type Temperature Time
Urine Refrigerated 1 month
Room Temperature 7 days
Frozen 6 months

Specimen Rejection Criteria

Quantity not sufficient

Useful For

Screening for albuminuria to detect early kidney disease.

Methodology

Roche Cobas - Immunoturbidimetric assay

Reference Ranges

Please note: The urine albumin/creatinine ratio reporting units were changed on 1/5/2022. Please see the December 2021 LabWire for details.

 

Urine Albumin/Creatinine Ratio

Range and Reporting Units

Normal

< 30 mg/g

Moderately Increased

30-300 mg/g

Severely Increased

> 300 mg/g

Interpretive

A_CR - Clinical & Interpretive: Albumin/Creatinine Ratio (mayocliniclabs.com)

Day(s) Performed

24/7

Expected TAT

Same day

Performing Laboratory

Bronson Laboratory, Chemistry - Kalamazoo, Battle Creek, Paw Paw, South Haven

Sample Retention Time

6 days

CPT Code

  • 82043: Albumin, Random, Urine
  • 82570: Creatinine, Random, Urine

LOINC Code

  • 14957-5: Albumin, Random, Urine
  • 2161-8: Creatinine, Random, Urine