Authors: Mary A. Williamson Mt(ascp) Phd,L. Michael Snyder Md
Tricyclic antidepressants: imipramine, amitriptyline
Phenothiazines: chlorpromazine, trifluoperazine
Anesthetics: halothane
Epsilon aminocaproic acid administered in large doses
Radiographic contrast agents
Certain foods (onions, garlic, ginger, black tree fungus) and food supplements
Disease Induced
Myeloproliferative neoplasms: moderately severe defect.
Myelodysplastic syndromes usually mild defect.
Uremia: defect due to accumulation of guanidinosuccinic acid. It is partially corrected by dialysis. Platelet counts are normal.
Liver disease: normal platelet counts, except in cases with hypersplenism. Dysfunctional platelets may contribute to bleeding risk.
Dysproteinemias as seen in multiple myeloma and Waldenström macroglobulinemia: normal platelet counts, except in advanced cases, or as the result of chemotherapy.
DIC affects platelet function mostly due to the effect of fibrin degradation products (FDP) on platelets.