Hemostasis Test 1

Vasoconstriction is caused by several regulatory molecules, which include:

Warfarin is classified as a vitamin K antagonist. The factors that are impacted by warfarin therapy are:

When a patent is placed on warfarin therapy, the first factor that will be decreased is:

A patient with a positive family history of bleeding presents to the ED with the results shown in this table:

The patient is not on any medication and so is likely to be deficient in factor:

Hageman factor (XII) is involved in each of the following reactions except:

The most potent plasminogen activator in the contact phase of coagulation is:

The activation of plasminogen to plasmin resulting in the degradation of fibrin occurs by:

How does tissue factor pathway inhibitor inhibit coagulation?

An inhibitor of plasmin activity is:

Antithrombin inhibits factors:

The propagation phase of the in vivo coagulation model includes:

In the cell-based model of coagulation the intrinsic pathway operates on the:

A new oral anticoagulant apixaban has been given to a patient who was previously on warfarin. This drug directly inhibits:

The anticoagulant that directly inhibits thrombin is:

A patient who presents with renal impairment is being started on oral anticoagulant therapy. The DOAC that should be avoided would be:

In secondary hemostasis, coagulation proteins become activated to form a fibrin clot. Prior to these proteins being activated, their inactive proenzymes are known as:

Alpha granules are found on the platelet in the:

Which of the following best represents the 3 steps of normal hemostasis (in order)?

Which of the following platelet antigens is the receptor for collagen?

Which platelet surface antigen acts as the receptor for fibrinogen?