472694
Descripción
Test por gina_evans0312, actualizado hace más de 1 año
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Creado por gina_evans0312
hace casi 11 años
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Pregunta 1
Pregunta
Define haemostasis
Respuesta
-
Production of blood cells
-
Circulation of blood
-
Blood clotting/the arrest of bleeding
Pregunta 2
Pregunta
Which blood components make up haemostatic mechanisms?
Respuesta
-
Platelets
-
Vascular epithelium
-
Fibrinolysis
-
RBC's
-
WBC's
Pregunta 3
Pregunta
Platelets contain granules
Respuesta
- True
- False
Pregunta 4
Pregunta
Name two traits of platelets
Respuesta
-
Open canicular structure
-
No nucleus
-
Glycoprotein rich surface
-
Indented membrane
Pregunta 5
Pregunta
What cells produce platelets (4000 from each cell)?
Respuesta
-
Megakaryocytes
-
Myeloblasts
-
Lymphoblasts
Pregunta 6
Pregunta
The normal platelet range is 150-400 x10^9/l
Respuesta
- True
- False
Pregunta 7
Pregunta
Once collagen is exposed, what binds to it?
Respuesta
-
Van Willibrown Factor
-
Factor V
-
Factor III
-
De Montfort Factor
Pregunta 8
Pregunta
Platelets bind to _ Factor and release
Respuesta
-
ADP
-
Thromborin A2
-
Thrombulin
-
ATP
Pregunta 9
Pregunta
A FBC and film exclude drugs/diseases that cause platelet disorders
Respuesta
- True
- False
Pregunta 10
Pregunta
What symptoms suggest platelet failure?
Respuesta
-
Spontaneous/easy bruising
-
Gastrointestinal Bleed
-
Epitaxis
Pregunta 11
Pregunta
A child with a platelet disorder is most likely to have aquired it
Respuesta
- True
- False
Pregunta 12
Pregunta
How does the Platelet Function Analyser work?
Respuesta
-
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
-
Forces blood through damaged tubes lined with fibrinogen and tests clotting time
Pregunta 13
Pregunta
What causes petechiae?
Respuesta
-
Bleeding under the skin
-
Spontaneous blood clotting
-
Spontaneous blood pooling
Pregunta 14
Pregunta
Bleeding time is rarely done, as it involves damaging the patient further
Respuesta
- True
- False
Pregunta 15
Pregunta
In an aggregation panel, exposed, concentrated platelets are exposed compared to what?
Respuesta
-
The last aggregation test taken
-
A sex matched control
-
An age and sex matched control
Pregunta 16
Pregunta
Which of the following hereditary platelet disorders don't have reduced aggregation with Ristocetin?
Respuesta
-
Van Willebrown disorder
-
Bernard Soulier Disorder
-
Glonzmans Thromobasthenia
Pregunta 17
Pregunta
Only Van Willebrowns disorder doesn't involve missing glycoproteins
Respuesta
- True
- False
Pregunta 18
Pregunta
Which of the following foods don't effect clotting?
Respuesta
-
Bananas
-
Peppers
-
Onions
-
Garlic
Pregunta 19
Pregunta
Name a drug that can reduce blood clotting
Respuesta
-
Aspirin
-
Calnexin
-
Ibruprofen
Pregunta 20
Pregunta
Myeloproliferative- where excess cells are poduced by the bone marrow
Respuesta
- True
- False
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