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Blood Transfusion

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Haematology and Anatomy (Blood Transfusions) Quiz on Blood Transfusion, 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 over 10 years ago
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Resource summary

Question 1

Question
Ag- Any substance that may be recognised as foreign
Answer
  • True
  • False

Question 2

Question
What is this, and what is it for?
Image:
Igg (image/png)
Answer
  • Ig G
  • Ig M
  • Crossing the placenta

Question 3

Question
What is Ig M use for?
Image:
IgM (image/jpg)
Answer
  • Crossing the placenta
  • Rapid agglutination
  • Bound to B cells

Question 4

Question
The Rhesus positive allele is...
Answer
  • Dominant
  • Recessive
  • Co-dominant

Question 5

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

Question 6

Question
Sensitisation- binding of Ig to individual blood cell
Answer
  • True
  • False

Question 7

Question
Agglutination is visible when
Answer
  • The Ig binds
  • A lattice is formed
  • The blood cells lyse

Question 8

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

Question 9

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

Question 10

Question
Which of the following is the 'Universal Receiver'?
Answer
  • A
  • O
  • AB

Question 11

Question
How do blood grouping cards work?
Answer
  • 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

Question 12

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

Question 13

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

Question 14

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

Question 15

Question
If the plasma reacts to any of the 20 Ig's, what happens?
Answer
  • 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)

Question 16

Question
Pregnant women protect their fetuses by injecting Anti-D
Answer
  • True
  • False

Question 17

Question
What is cross matching?
Answer
  • 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

Question 18

Question
Transfusions are necessary if >40% of blood is lost
Answer
  • True
  • False

Question 19

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

Question 20

Question
Exchange transfusion is used for babies with HDN
Answer
  • True
  • False

Question 21

Question
Why are antibodies the issue in blood transfusions?
Answer
  • 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

Question 22

Question
RBC's are stored in 120-200 ml quantities
Answer
  • True
  • False

Question 23

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

Question 24

Question
Blood is transfused over 2-3 hours
Answer
  • True
  • False

Question 25

Question
1 bag of RBC's costs how much?
Answer
  • £130
  • £140
  • £150

Question 26

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

Question 27

Question
With plasma, Universal Donor's and Receivers are reversed
Answer
  • True
  • False

Question 28

Question
Plasma is dosed at 12-15ml/kg
Answer
  • True
  • False

Question 29

Question
Plasma also contains
Answer
  • Clotting factors
  • Ig's
  • Drugs

Question 30

Question
A bag of plasma and clotting factors costs £40.00
Answer
  • True
  • False

Question 31

Question
Cryoprecipitate contains concentrated clotting factors and Ig's
Answer
  • True
  • False

Question 32

Question
Cryoprecipitate has a shelf life of _ at -30 degrees
Answer
  • 2
  • 1
  • 3

Question 33

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

Question 34

Question
Platlets are stored at 22 degrees and cannot be refrigerated
Answer
  • True
  • False

Question 35

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

Question 36

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

Question 37

Question
What is Aphoresis
Answer
  • Removal of a blood component
  • Removal of blood
  • Removal of body tissue

Question 38

Question
Platelets cost £20 a bag
Answer
  • True
  • False
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