Exam 30: Disorders of Primary Hemostasis

A patient has a splitting headache shortly before getting her blood tested.She takes a couple of aspirin, and is scheduled for platelet aggregation studies.What effect will this have on the platelet aggregation studies?

Thrombocytosis is associated with which of the following?

Immune complexes induce vasculitis by which of the following processes?

A patient visits his physician because of unexplained bruising and prolonged bleeding from a recent tooth extraction.The physician orders a prothrombin time (PT) and an APTT.Results are within normal reference ranges.What other tests could the physician order to investigate his patient's symptoms?

Splenomegaly can cause thrombocytopenia by which of the following mechanisms?

Which hemostatic disorder usually is represented by a decreased platelet count, normal PT, normal APTT, and abnormal bleeding time?

A patient has a platelet count of 80 x 109/L and a bleeding time of 15 min.From what is the patient most likely suffering?

What is the most common cause of thrombocytopenia?

Aspirin affects platelet aggregation because it interferes with:

Scurvy can lead to vascular defects by which of the following mechanisms?

Which of the following is a mechanism of inducing thrombocytopenia in a patient?

Explain the pathophysiology of the following, and why each typically has normal coagulation screening tests. A)Bernard-Soulier syndrome B)Glanzmann's thrombasthenia C) $\delta$ -Storage pool disease D)Gray platelet syndrome

Acquired disorders of the vascular system including senile purpura, Cushing's syndrome, corticosteroid therapy, and scurvy have one condition in common.Which of the following best describes this condition?