Questão 1
Questão
Define haemostasis
Questão 2
Questão
Which blood components make up haemostatic mechanisms?
Responda
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Platelets
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Vascular epithelium
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Fibrinolysis
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RBC's
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WBC's
Questão 3
Questão
Platelets contain granules
Questão 4
Questão
Name two traits of platelets
Questão 5
Questão
What cells produce platelets (4000 from each cell)?
Responda
-
Megakaryocytes
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Myeloblasts
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Lymphoblasts
Questão 6
Questão
The normal platelet range is 150-400 x10^9/l
Questão 7
Questão
Once collagen is exposed, what binds to it?
Responda
-
Van Willibrown Factor
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Factor V
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Factor III
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De Montfort Factor
Questão 8
Questão
Platelets bind to _ Factor and release
Responda
-
ADP
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Thromborin A2
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Thrombulin
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ATP
Questão 9
Questão
A FBC and film exclude drugs/diseases that cause platelet disorders
Questão 10
Questão
What symptoms suggest platelet failure?
Questão 11
Questão
A child with a platelet disorder is most likely to have aquired it
Questão 12
Questão
How does the Platelet Function Analyser work?
Responda
-
Forces blood through a membrane with a high shear rate and tests clotting time
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Forces blood into a medium high in collage and tests clotting time
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Forces blood through damaged tubes lined with fibrinogen and tests clotting time
Questão 13
Questão
What causes petechiae?
Questão 14
Questão
Bleeding time is rarely done, as it involves damaging the patient further
Questão 15
Questão
In an aggregation panel, exposed, concentrated platelets are exposed compared to what?
Questão 16
Questão
Which of the following hereditary platelet disorders don't have reduced aggregation with Ristocetin?
Questão 17
Questão
Only Van Willebrowns disorder doesn't involve missing glycoproteins
Questão 18
Questão
Which of the following foods don't effect clotting?
Responda
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Bananas
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Peppers
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Onions
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Garlic
Questão 19
Questão
Name a drug that can reduce blood clotting
Responda
-
Aspirin
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Calnexin
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Ibruprofen
Questão 20
Questão
Myeloproliferative- where excess cells are poduced by the bone marrow