Hemostasis Test 4

Unregulated and excessive formation of thrombin and plasmin is seen in:

A patient presents with a factor VIII level of 2%. The vWF activity (ristocetin cofactor) is<1% with a vWF antigen of 3%. The most likely diagnosis is:

A patient with a clot presents with the results shown in this table:

The most likely diagnosis is:

The following results are obtained on a pregnant woman who is short of breath.

The patient’s obstetrician calls because of concern about the patient’s clotting risk. Based on the pregnancy status of this patient, the results appear:

A 65-year-old male with metastatic pancreatic carcinoma shows elevated PT and aPTT, platelet count 15 x 10³/μL (15 x 10⁹/L) and elevated D-dimer. A blood smear would show:

A 25-year-old male with celiac disease presents with occult positive stools. What vitamin deficiency should be considered?

vWF antigen can be found in which of the following?

The life span of a platelet is:

Aspirin affects platelet function by interfering with platelet metabolism of:

In patients who present with bleeding disorders caused by platelets, the most common type of bleeding is:

The anticoagulant that is best directed against platelets is:

How do ticlopidine and clopidogrel inhibit platelets?

von Willebrand factor mediates platelet adhesion by binding to platelet receptor:

The disease state that presents with a quantitative platelet disorder is:

A patient presents with a very low platelet count and is diagnosed with acute idiopathic thrombocytopenic purpura (ITP). Which statement is associated with acute ITP?

The most common cause of bleeding in patients is:

A 53-year-old man is in recovery following a triple bypass operation. Oozing is noted from his surgical wound. The laboratory data shown in this table are obtained:

The most likely cause of bleeding would be:

ADAMTS13 deficiency is responsible for thrombocytopenia found in:

Heparin induced thrombocytopenia (HIT) is an immune mediated complication associated with heparin therapy. Antibodies are produced against:

In polycythemia vera, the platelet count is: