This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
All are TRUE about thin basement membrane defect, EXCEPT: 
Select and explain. 
A. Also known as benign familial hematuria, B. Autosomal dominant inheritance, C. Persistent or recurrent microscopic hematuria, D. Impaired renal function
D: Impaired renal function
Answer: D: Impaired renal function 
Explanation: Benign familial hematuria is also referred to as thin basement membrane disease. It is inherited as an autosomal dominant trait Characterised by persistent or recurrent microscopic hematuria, a uniformly thinned GBM, and normal renal function. Proteinuria and episodes of gross hematuria are uncommon. The disease is not associated with extrarenal manifestations Ref: Dan Med Bull 2009; 56:105-52