Ordering Recommendation

Detect early kidney disease in those with diabetes or other risk factors (eg, hypertension).

Mnemonic
ALB/CRT
Methodology

Quantitative Immunoturbidimetry

Performed

Sun-Sat

Reported

Within 24 hours

New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Collect

24-hour urine. Refrigerate during collection. Also acceptable: Random or other timed urine.

Specimen Preparation

Transfer 1 mL aliquot of urine from a well-mixed collection to an ARUP Standard Transport Tube. (Min: 0.5 mL) Record total volume and collection time interval on transport tube and test request form.

Storage/Transport Temperature

Refrigerated.

Unacceptable Conditions
Remarks
Stability

Ambient: 1 week; Refrigerated: 1 month; Frozen: 6 months (avoid repeated freeze/thaw cycles)

Reference Interval
Test Number
Components
Reference Interval
0020473 Creatinine, Urine - per 24h
Age
Male
Female
3-8 years 140-700 mg/d 140-700 mg/d
9-12 years 300-1300 mg/d 300-1300 mg/d
13-17 years 500-2300 mg/d 400-1600 mg/d
18-50 years 1000-2500 mg/d 700-1600 mg/d
51-80 years 800-2100 mg/d 500-1400 mg/d
81 years and older 600-2000 mg/d 400-1300 mg/d

  Creatinine, Urine - per volume No reference interval
  Albumin - mg/dL No reference interval
  Albumin - ug/minute 0-20 µg/minute
  Albumin - mg/day 2-30 mg/day
  Albumin/Creatinine Ratio 0-30 mg/g

Interpretive Data



No compliance statements are in use for this test.

Note

To convert from mg/g creatinine to mg/mmol of creatinine multiply by 0.113.

Hotline History
N/A
CPT Codes

82043; 82570

Components
Component Test Code* Component Chart Name LOINC
0020207 Creatinine, Urine - per volume 2161-8
0020208 Creatinine, Urine - per 24h 2162-6
0050583 Albumin - mg/dL 30003-8
0050678 Albumin/Creatinine Ratio 14958-3
0097110 Total Volume 19153-6
0097111 Hours Collected 30211-7
0099081 Albumin - ug/minute 58448-2
0099082 Albumin - mg/day 14956-7
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • ACR
  • ALB/CR ratio
  • Albumin
  • Albumin, Urine
  • Albumin-to-Creatinine Ratio
  • Albumin/Creatinine Ratio
  • Microalbumin, Random Collection
  • Microalbumin, Random Urine
  • Microalbumin/Creatinine Ratio
  • Random Microalbuminuria
  • Random Microalbuminuria, Urine
  • Urine Albumin
Albumin-Creatinine Ratio, Urine