Haemostasis

Descripción

(Coagulation) Haematology and Anatomy Test sobre Haemostasis, creado por gina_evans0312 el 09/01/2014.
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Test por gina_evans0312, actualizado hace más de 1 año
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Creado por gina_evans0312 hace más de 10 años
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Resumen del Recurso

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
  • 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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