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Haemostasis

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Haematology and Anatomy (Coagulation) Quiz on Haemostasis, created by gina_evans0312 on 09/01/2014.
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Quiz by gina_evans0312, updated more than 1 year ago
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Created by gina_evans0312 almost 11 years ago
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Resource summary

Question 1

Question
Define haemostasis
Answer
  • Production of blood cells
  • Circulation of blood
  • Blood clotting/the arrest of bleeding

Question 2

Question
Which blood components make up haemostatic mechanisms?
Answer
  • Platelets
  • Vascular epithelium
  • Fibrinolysis
  • RBC's
  • WBC's

Question 3

Question
Platelets contain granules
Answer
  • True
  • False

Question 4

Question
Name two traits of platelets
Answer
  • Open canicular structure
  • No nucleus
  • Glycoprotein rich surface
  • Indented membrane

Question 5

Question
What cells produce platelets (4000 from each cell)?
Answer
  • Megakaryocytes
  • Myeloblasts
  • Lymphoblasts

Question 6

Question
The normal platelet range is 150-400 x10^9/l
Answer
  • True
  • False

Question 7

Question
Once collagen is exposed, what binds to it?
Answer
  • Van Willibrown Factor
  • Factor V
  • Factor III
  • De Montfort Factor

Question 8

Question
Platelets bind to _ Factor and release
Answer
  • ADP
  • Thromborin A2
  • Thrombulin
  • ATP

Question 9

Question
A FBC and film exclude drugs/diseases that cause platelet disorders
Answer
  • True
  • False

Question 10

Question
What symptoms suggest platelet failure?
Answer
  • Spontaneous/easy bruising
  • Gastrointestinal Bleed
  • Epitaxis

Question 11

Question
A child with a platelet disorder is most likely to have aquired it
Answer
  • True
  • False

Question 12

Question
How does the Platelet Function Analyser work?
Answer
  • 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

Question 13

Question
What causes petechiae?
Answer
  • Bleeding under the skin
  • Spontaneous blood clotting
  • Spontaneous blood pooling

Question 14

Question
Bleeding time is rarely done, as it involves damaging the patient further
Answer
  • True
  • False

Question 15

Question
In an aggregation panel, exposed, concentrated platelets are exposed compared to what?
Answer
  • The last aggregation test taken
  • A sex matched control
  • An age and sex matched control

Question 16

Question
Which of the following hereditary platelet disorders don't have reduced aggregation with Ristocetin?
Answer
  • Van Willebrown disorder
  • Bernard Soulier Disorder
  • Glonzmans Thromobasthenia

Question 17

Question
Only Van Willebrowns disorder doesn't involve missing glycoproteins
Answer
  • True
  • False

Question 18

Question
Which of the following foods don't effect clotting?
Answer
  • Bananas
  • Peppers
  • Onions
  • Garlic

Question 19

Question
Name a drug that can reduce blood clotting
Answer
  • Aspirin
  • Calnexin
  • Ibruprofen

Question 20

Question
Myeloproliferative- where excess cells are poduced by the bone marrow
Answer
  • True
  • False
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