Albumin, Random Urine with Creatinine

Alternate Names Albumin with Creatinine, Microalbumin with Creatinine, Albumin/Creatinine Ratio, Albumin-Creatinine Ratio
Ordering Recommendation Used to detect albuminuria by measuring urine albumin and creatinine concentrations, along with calculating albumin/creatinine ratio (ACR). Results are useful for assessing kidney damage, especially at an early stage, in patients with diabetes or other risk factors. Results may be used to inform management and prognosis of chronic kidney disease.
Specimen Urine
Container Type White Top Tube (No Additive)

Tests Included Albumin, Random Urine
Creatinine, Random Urine
Calculation Albumin/Creatinine Ratio (ACR)
Methodology Albumin, Random Urine: Immunoturbidimetric
Creatinine, Random Urine: Modified Jaffe (Kinetic)
Reference Range Albumin, Random Urine: Not Established
Creatinine, Random Urine: Not Established
Albumin/Creatinine Ratio (ACR): <30 mg/g

Albuminuria is categorized according to KDIGO guidelines as follows:

ACR Category: ACR: Interpretation:
A1 <30 Normal to mildly increased
A2 30-299 Moderately increased
A3 >=300 Severely increased
Stability 7 days
Transport Temp Refrigerate 2°-8° C
Instructions Physical exercise during the previous 24 hours can cause a transient elevation in albumin. Other variables, including infection, fever, congestive heart failure, marked hyperglycemia, and marked hypertension, can result in increased albumin levels.
Days Performed Daily
Report Available 1-3 days
NY State Available Yes
LOINC 14957-5, 2161-8, 9318-7
CPT Code 82043, 82570