A 5-year-old male is diagnosed with idiopathic thrombocytic purpura (ITP). This condition is caused by:
A) normal postnatal platelet lysis.
B) virally induced antibody destruction of platelets.
C) an allergic reaction to vaccinations.
D) maternal antibodies that target platelets in the neonate.

Question

Quizplus · Accepted Answer

Idiopathic thrombocytic purpura (ITP) is a condition in which platelets are destroyed by antibodies, often resulting in purpura (bruising). The cause is unknown, but it is believed to be an autoimmune response triggered by a viral infection or other factors. Maternal antibodies targeting platelets can cause a similar condition in neonates, which is known as neonatal alloimmune thrombocytopenia (NATP). Allergic reactions to vaccinations have not been proven to cause ITP. Normal postnatal platelet lysis is a normal process that occurs naturally and is not a cause of ITP.

A 5-Year-Old Male Is Diagnosed with Idiopathic Thrombocytic Purpura (ITP)