PTP is caused by a platelet-specific alloantibody (often anti-HPA-1a in HPA-1b/b individuals, usually women sensitized by pregnancy). Upon re-exposure to the antigen via transfusion, an anamnestic response produces high levels of this IgG antibody. Paradoxically, it destroys both the transfused platelets and the patient's own platelets, causing severe thrombocytopenia.

Break down complex topics into smaller, manageable chunks for easier recall.

Zambia

• Joseph Soko – 101 pts

• Visual Pathway Lesions
• Positive and Negative Symptoms
• Hallucinations and Delusions
• Antipsychotic Medications
• Emergency: Environmental Emergencies