IiiMembranoproliferative glomerulonephritis MPGN

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iv. Henoch-Schonlein purpura (HSP). In most cases proteinuria eventually disappears, although it may reappear with recurrences.

v. Hemolytic uremic syndrome (HUS). Complete resolution of proteinuria occurs in most cases.

vi. Lupus nephritis. Degree of proteinuria tends to follow disease activity and may completely resolve during full remission.

vii. Diabetic nephropathy. Microalbuminuria is first sign of this condition. Because diabetic nephropathy usually takes many years to develop, this form of proteinuria is mostly seen in adolescents.

b. Tubular proteinuria. Normal renal tubules have the capacity to reabsorb nearly all small-molecular-weight proteins that pass through an intact glomerular basement membrane. In this form of proteinuria, tubules are unable to reabsorb these proteins, causing excessive excretion of mostly small proteins (eg, ^-microglobulin). Because urine dipstick strips are optimized to detect albumin in urine, this form of proteinuria will be underestimated by a simple urine dipstick test, or not detected at all.

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