Thrombocytopenic purpura Flashcards
Occurs at what level of plt
minor trauma/pressure (platelet count < 40,000/μL) or spontaneously (platelet count < 10,000/μL).
Caused by what drugs
drugs (cytosine arabinoside, dauno-
rubicin, cyclophosphamide, busulfan, methotrexate, 6-mercaptopurine, vinca alkaloids, thiazide diuretics,ethanol,estrogens
Deugs that cause inc plt destruction
drughypersensitivity(sulonamides,
quinine, quinidine, carbamazepine, digitoxin, or methyldopa
Skin and mucous findings.
Petechiae—Small (pinpoint to pinhead), red, nonblanching macules that are not palpable and turn brown as they get older, later acquiring a yellowish-green tinge. Ecchymoses—Black-and-bluespots;larger area of hemorrhage.
Vibices—linear hemorrhages, due to trauma or pressure. Most common on legs and upper trunk, but may occur anywhere.
■ Mucous Membranes. Petechiae—Most often on palate and gingival bleeding.
management
identify underlying cause and correct, it possible.
Oral glucocorticoids, high-dose IV immunoglobulins,or platelet transfusion for chronicITP(splenectomymaybeindicated>