Blood Transfusion

Descrição

Haematology and Anatomy (Blood Transfusions) Quiz sobre Blood Transfusion, criado por gina_evans0312 em 09-01-2014.
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Quiz por gina_evans0312, atualizado more than 1 year ago
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Criado por gina_evans0312 mais de 10 anos atrás
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1

Resumo de Recurso

Questão 1

Questão
Ag- Any substance that may be recognised as foreign
Responda
  • True
  • False

Questão 2

Questão
What is this, and what is it for?
Responda
  • Ig G
  • Ig M
  • Crossing the placenta

Questão 3

Questão
What is Ig M use for?
Responda
  • Crossing the placenta
  • Rapid agglutination
  • Bound to B cells

Questão 4

Questão
The Rhesus positive allele is...
Responda
  • Dominant
  • Recessive
  • Co-dominant

Questão 5

Questão
Homozygous dd has the potential to produce Anti-D in what circumstances
Responda
  • Illness
  • Incorrect transfusion
  • Pregnancy

Questão 6

Questão
Sensitisation- binding of Ig to individual blood cell
Responda
  • True
  • False

Questão 7

Questão
Agglutination is visible when
Responda
  • The Ig binds
  • A lattice is formed
  • The blood cells lyse

Questão 8

Questão
Which of the following RBC's contain the H substance (L-Fucose)
Responda
  • O
  • A
  • B

Questão 9

Questão
Type AB has what added to the H substance?
Responda
  • N-Galactosamine
  • D- Galactose
  • N-Glucosamine
  • Acetyl CoA

Questão 10

Questão
Which of the following is the 'Universal Receiver'?
Responda
  • A
  • O
  • AB

Questão 11

Questão
How do blood grouping cards work?
Responda
  • Tiny columns of small beads with Ig's bound
  • If blood agglutinates due to Ig's, it cannot pass through column
  • If blood agglutinates due to Ig's, it sinks to the bottom of the column

Questão 12

Questão
1 in 40 people have Ig's other than ABO and Rhesus
Responda
  • True
  • False

Questão 13

Questão
How many Ig's (other than ABO and Rhesus) can cause haemolytic reactions
Responda
  • 10
  • 20
  • 30

Questão 14

Questão
3 Cells are brought in as controls- why?
Responda
  • Between the three of them, they cover all 20 Ig's
  • Then the patient plasma is added, and the reaction studied

Questão 15

Questão
If the plasma reacts to any of the 20 Ig's, what happens?
Responda
  • They're tested against 10 donors (process of elimination)
  • They're tested against 20 donors (process of elimination)
  • They're tested against 15 donors (process of elimination)

Questão 16

Questão
Pregnant women protect their fetuses by injecting Anti-D
Responda
  • True
  • False

Questão 17

Questão
What is cross matching?
Responda
  • The patients plasma is mixed with potential donor cells and the reaction studied after 40 mins
  • The patients RBC's are mixed with proteintial plasma and the reaction studied after 40 mins

Questão 18

Questão
Transfusions are necessary if >40% of blood is lost
Responda
  • True
  • False

Questão 19

Questão
What is an Exchange Transfusion?
Responda
  • Where all blood is taken out and replaced
  • Where two complimentary donors exchange blood

Questão 20

Questão
Exchange transfusion is used for babies with HDN
Responda
  • True
  • False

Questão 21

Questão
Why are antibodies the issue in blood transfusions?
Responda
  • They are much more abundant than RBC's
  • RBC's don't contain the MAC Class 1 marker that allows self cells to be identified
  • RBC reactions can be easily stopped

Questão 22

Questão
RBC's are stored in 120-200 ml quantities
Responda
  • True
  • False

Questão 23

Questão
1 unit of RBC's is expected to raise blood Hb by how much?
Responda
  • 1 g/dl
  • 5 g/dl
  • 10 g/dl

Questão 24

Questão
Blood is transfused over 2-3 hours
Responda
  • True
  • False

Questão 25

Questão
1 bag of RBC's costs how much?
Responda
  • £130
  • £140
  • £150

Questão 26

Questão
Plasma has a shelf life of _ and a half life of _ once unfrozen
Responda
  • 2 years
  • 1 year
  • 6 months
  • 4-8 hours
  • 2-4 hours

Questão 27

Questão
With plasma, Universal Donor's and Receivers are reversed
Responda
  • True
  • False

Questão 28

Questão
Plasma is dosed at 12-15ml/kg
Responda
  • True
  • False

Questão 29

Questão
Plasma also contains
Responda
  • Clotting factors
  • Ig's
  • Drugs

Questão 30

Questão
A bag of plasma and clotting factors costs £40.00
Responda
  • True
  • False

Questão 31

Questão
Cryoprecipitate contains concentrated clotting factors and Ig's
Responda
  • True
  • False

Questão 32

Questão
Cryoprecipitate has a shelf life of _ at -30 degrees
Responda
  • 2
  • 1
  • 3

Questão 33

Questão
When is cryoprecipitate added?
Responda
  • When fibrinogen is below 1g/l
  • When Factor V is below 5g/l
  • 2 bags per dose

Questão 34

Questão
Platlets are stored at 22 degrees and cannot be refrigerated
Responda
  • True
  • False

Questão 35

Questão
Platelets have a shelf life of 7 days if...
Responda
  • it's kept agitated
  • it's kept frozen
  • it is stored in a vacuum

Questão 36

Questão
Platelets are given over 30 mins and increase blood count by 3-4 x 10^9
Responda
  • True
  • False

Questão 37

Questão
What is Aphoresis
Responda
  • Removal of a blood component
  • Removal of blood
  • Removal of body tissue

Questão 38

Questão
Platelets cost £20 a bag
Responda
  • True
  • False

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