ARUP's Laboratory Test Directory

0050203: Microalbumin, Urine

Test Mnemonic: ALB/CRT
Methodology: Immunoturbidimetric

Performed: Sun-Sat

Reported: Within 24 hours

Specimen Required:  
Collect: 24-hour urine. Specimen must be refrigerated during collection. Random or other timed urine collections are also acceptable.

Transport: 1 mL aliquot from a well-mixed 24-hour, random or other timed collection at 2-8°C.  (Min: 0.5 mL) Submit specimen in an ARUP Standard Transport Tube.

Remarks: Record total volume and collection time interval on transport tube, and test request form.

Stability: Ambient: 4 hours; Refrigerated: 1 week; Frozen: 3 months (avoid repeated freeze/thaw cycles)

Reference Interval:
 
Test Number Components Reference Interval
 Creatinine (24-hour)  
 
Male Female
3-8 years: 140-700 mg/d
9-12 years: 300-1300 mg/d
13-17 years: 500-2300 mg/d
18-50 years: 1000-2500 mg/d
51-80 years: 800-2100 mg/d
81 years and older: 600-2000 mg/d 		3-8 years: 140-700 mg/d
9-12 years: 300-1300 mg/d
13-17 years: 400-1600 mg/d
18-50 years: 700-1600 mg/d
51-80 years: 500-1400 mg/d
81 years and older: 400-1300 mg/d
 Creatinine, Random No reference interval
 Microalbumin - mg/dL No reference interval
 Microalbumin - µg/minute 0-20 µg/minute
 Microalbumin - mg/day 2-30 mg/day
 Microalbumin/Creatinine Ratio0-30 mg/g

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

CPT Code(s):
82570 Creatinine; 82043 Microalbumin

 

 

 
All ARUP Sites:        www.aruplab.com     ·     www.arupconsult.com     ·     www.arup.utah.edu     ·     www.childx.org     ·     www.utahblood.org