Microalbumin - urine
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MALB
Synonyms
- Paucialbumin
Specialty
Biochemistry
Clinical significance
This test can detect albumin being excreted in the urine at a rate of between 30 and 300 mg/24h in a normal urine sample, or of between 20 and 200 µg/minute in an overnight urine sample. This means that this test is more sensitive than conventional chemical methods and screening tests (e.g. dipsticks). It can detect increased albumin excretion before it becomes overtly pathological. In normal subjects, albumin secretion in the urine is enhanced by smoking, drinking, a high-protein diet and intense physical exercise. In diabetics, early detection of increased albumin secretion in the urine is essential to be able to forestall the renal damage which is the main reason for morbidity and mortality in this disease. In the general population, a high microalbumin result is a cardiovascular risk factor associated with high blood pressure, hyperlipidaemia and obesity.
Preanalytics
- 500 µL :
- 24 hour urine or random urine
- Reftrigerated
- A tube specifically for this analysis : No
Further information
Possible preservatives: chlorydric acid 6N, acetic acid, chloroform, formalin, toluene, xylene.
Avoid repeated freezing/thawing cycles
Specify diuresis
Specific equipment available
- Tube for urine sample (4mL)-T28
Methodology
Immuno turbidimetry
Turnaround time
1 day
Biomnis Ivry