In Henoch–Schonlein purpura renal involvement is not seen generally if no involvement till ?
Correct Answer: 4 month after onset
Description: Renal involvement occurs in 20% to 50% of HSP, usually within 4 weeks of presentation, and less commonly precedes the other symptoms.
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
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 start at the onset or within 3 months of the onset of other symptoms" — Pediatric nephrology
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.
Category:
Pediatrics
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now