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Microalbumin, Random, Urine
Test CodeMicroalbumin Urine, Random/RUMA - NCMC
CPT Codes
82043
Preferred Specimen
10 mL urine in clean, plastic urine container
Minimum Volume
0.5 mL
Instructions
Collect a random urine specimen
Specimen Stability
| Specimen Type | Temperature | Time |
| Urine | Refrigerated | 5 days |
Methodology
Nephelometry
Setup Schedule
Monday through Sunday; Continuously
Report Available
Daily
Limitations
Because of variability in urinary albumin excretion, two of three specimens collected within a 3- to 6-month period should be abnormal before considering a patient to have crossed one of these diagnostic thresholds. Exercise within 24 h, infection, fever, congestive heart failure, marked hyperglycemia, and marked hypertension may elevate urinary albumin excretion over baseline values.
Reference Range
Microalbumin: <20 mg/L
Microalbumin normalized to creatinine: <29 mg/g creat
Microalbumin normalized to creatinine: <29 mg/g creat
Clinical Significance
Microalbuminuria is characterized by urinary albumin excretion above normal levels in the absence of clinically detectable nephropathy. Mildly increased excretion of albumin has been recognized to be a predictor of impending development of clinical renal disease in patients with hypertension or diabetes mellitus.
Performing Laboratory
North Colorado Medical Center Laboratory
