Author: Anonymous

A patient’s peripheral blood smear reveals many giant platelets. All platelet function tests show normal aggregation with the exception of ristocetin. From what is the patient most likely suffering?

A patient visits a 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 the patient’s symptoms?

Splenomegaly can cause thrombocytopenia by which of the following mechanisms?

Patient presents with oozing 48 hours post tooth extraction. Results are as follows:PT: 11.5 seconds (Ref: 10-13 seconds)aPTT: 32.5 seconds (Ref: 23-35 seconds)Fibrinogen: 345 mg/dL (Ref: 200-400 mg/dL)Platelets: 324 x 103/uLThe most likely deficiency is:

Minimum screening test(s) that should be considered in the evaluation of abnormal bleeding is(are) which of the following? (select all that apply)

What would be the expected laboratory results in a patient with thrombocytopenia? (select all that apply)

Thrombocytopenia would be indicated by a platelet count of:

34. Which of these statements about Wallerstein’s World-Systems Theory is FALSE?

Predict the typical expected results of clot-based PT in a patient with a platelet defect.

A patient is experiencing pinpoint petechial bruising on her upper torso. Her history revealed frequent nosebleeds during her childhood. Clot-based screening assays are within normal reference ranges, and platelet function assays are abnormal. Based on this information, what appears to be defective in this patient?