472260
Descrição
Quiz por gina_evans0312, atualizado more than 1 year ago
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Criado por gina_evans0312
quase 11 anos atrás
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Questão 1
Questão
Ag- Any substance that may be recognised as foreign
Responda
- True
- False
Questão 2
Responda
-
Ig G
-
Ig M
-
Crossing the placenta
Questão 3
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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