Thin basement membrane disease laboratory findings

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Marufa Marium, M.B.B.S[2]

Laboratory findings consistent with the diagnosis of TBDM include asymptomatic benign microscopic hematuria with normal renal function test.

Laboratory findings consistent with the diagnosis of TBMD include:

• Urinalysis^[1]:
  • Microscopic intermittent or persistent hematuria in patient and multiple family members.
  • Proteinuria: Rarely in children, mild-moderate proteinuria is seen in adult and neprotic range proteinuria is rarely seen in elderly patient.
• Renal function test: Normal.
• CBC: Normal.

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