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: Pediatrics
A child presents with sudden onset of red spots on body. There is history of precceding viral infection 1-4 weeks before the onset of red spots. Lab investigations shows Hb-12gm%, WBC-11,000 Platelet count - 50,000. Which of the following is not useful for the management of this condition? 
Select and explain. 
A. Platelet transfusion, B. Intravenous Immunoglobulin, C. Intravenous anti-D therapy, D. Corticosteroids
A: Platelet transfusion
Answer: A: Platelet transfusion 
Explanation: Sudden onset of red spots indicates petechiae
History of preceding viral infection present.
Platelet count - 50,000
All these points towards Immune thrombocytopenic.
Here, Platelet transfusion is avoided, unless life threatening bleeding is present.