Tag: Immune mediated

While a serious and rare complication, a hyperhemolytic crisis is a life-threatening event, particularly for individuals with underlying blood disorders like sickle cell disease. It is characterized by the sudden, uncontrolled destruction of both the patient's native red blood cells and those from a recent transfusion.

Adverse drug reactions (ADRs) are a major cause of hospital admissions, and a small, but significant portion are described as idiosyncratic. Understanding precisely **what does "idiosyncratic" mean in medicine?** is key to comprehending why a drug can be safe for most people yet cause severe, unexpected reactions in a few. This guide explores this complex medical phenomenon.