En Henoch-Scholein purpura renal involvement is not seen generally if no involvement till ?
Correct Answer: 4 month after onset
Description: Ans. is 'd i.e., 4 month after onset o Renal involvement occurs in 20% to 50% of HSP, usually within 4 weeks of presentation, and less commonly preceds the other symptoms. o The onset of abnormalities may follow the onset of other symptoms by weeks (80% within 4 weeks) or even months (97% within 3 months). Coming back to question Sorry guys i could not find any reference which clearly mention the answer of this question. o According to me the best answer is 4 months because renal involvement may be seen up to 3 months after the onset of other symptoms (examiner is asking about the renal involvement after onset of disease, not after the onset of other symptoms). "Renal manifestations usually sta at the onset or within 3 months of the onset of other symptoms" - Pediatric nephrology o Other symptoms, e.g. rash, will also take some time to appear after the onset of disease. Thus, renal involvement may occur up to more than 3 months after onset of the disease. o Thus among the given options 4 months is best answer (Still i am not sure about the answer).
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