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Nephrology & Renal Medicine

Dialyzer Reaction (Type A / Anaphylactic)

ICD-10 Code
T80.52XA

IgE-mediated severe hypersensitivity reaction to dialyzer components (historically Ethylene Oxide sterilant) or polyacrylonitrile (PAN) membranes in patients on ACE inhibitors (due to bradykinin accumulation).

Clinical Presentation & Protocol

Patient Usually Complains Of

Patient developed acute onset of symptoms within minutes of hemodialysis initiation, characterized by dyspnea, generalized urticaria, pruritus, and hypotension. No prior history of similar reactions. Current medication list reviewed for ACE inhibitors. Dialysis was immediately terminated without blood return.

Clinical Examination Findings

Patient appears in acute distress, diaphoretic, and tachypneic. Skin: diffuse erythematous rash and urticaria noted on trunk and extremities. Mucosal membranes: no angioedema of the tongue or lips. Alert and oriented, but anxious.

Treatment Protocol

Immediate cessation of dialysis. Discarded extracorporeal blood circuit. Administered IM Epinephrine (0.3-0.5 mg), IV fluids (normal saline bolus), IV antihistamines (diphenhydramine), and IV corticosteroids (methylprednisolone). Oxygen therapy initiated via nasal cannula. Continuous monitoring of vitals.

Detailed clinical guide coming soon.