Overview
Albuminuria: Introduction
Albuminuria : The presence of albumin (a blood protein) in the urine. More detailed information about the symptoms, causes, and treatments of Albuminuria is available below.
Albumin is a protein in your blood plasma. In healthy kidneys, the albumin does not pass from the blood in to the urine. There are filters in the kidneys that prevent large molecules, such as albumin, from passing through. This filter is the glomerular membrane.
High blood sugar levels associated with diabetes can damage this membrane over time. If your kidneys are damaged, albumin can be excreted in your urine, instead of filtering through the kidneys.
This condition is called "albuminuria" and is an indicator of kidney disease. Kidney disease is a serious long-term complication of diabetes.
Causes
The kidneys normally filter out large molecules from the urine, so albuminuria can be an indicator of damage to the kidneys. It can also occur in patients with long-standing diabetes especially type 1 diabetes.
Causes of albuminuria can be discriminated between by the amount of protein excreted :
- The nephrotic syndrome usually results in the excretion of about 3.0 to 3.5 grams per 24 hours.
- Nephritic syndrome results in far less albuminuria.
- Microalbuminuria (less than 300mg) can be a forerunner of diabetic nephropathy.
Symptoms of Albuminuria
- Asymptomatic
- Symptoms of underlying cause
- Renal disease
- High blood pressure
- Swelling of tissues
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