<prompt> A female patient Nandini presents with upper respiratory tract infection. After 15 days, she develops hematuria. Probable diagnosis is:IgA nephropathyWegeners granulomatosisHenoch scholein purpuraPost streptococcal glomerulonephritis  <response>: Answer is D Post streptococcal glomerulonephritis: While, IgA Nephropathy presents within three days, presentation of poststreptococcal GN is usually delayed to more than 10 days. 