472260
Descripción
Test por gina_evans0312, actualizado hace más de 1 año
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Creado por gina_evans0312
hace casi 11 años
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Pregunta 1
Pregunta
Ag- Any substance that may be recognised as foreign
Respuesta
- True
- False
Pregunta 2
Respuesta
-
Ig G
-
Ig M
-
Crossing the placenta
Pregunta 3
Respuesta
-
Crossing the placenta
-
Rapid agglutination
-
Bound to B cells
Pregunta 4
Pregunta
The Rhesus positive allele is...
Respuesta
-
Dominant
-
Recessive
-
Co-dominant
Pregunta 5
Pregunta
Homozygous dd has the potential to produce Anti-D in what circumstances
Respuesta
-
Illness
-
Incorrect transfusion
-
Pregnancy
Pregunta 6
Pregunta
Sensitisation- binding of Ig to individual blood cell
Respuesta
- True
- False
Pregunta 7
Pregunta
Agglutination is visible when
Respuesta
-
The Ig binds
-
A lattice is formed
-
The blood cells lyse
Pregunta 8
Pregunta
Which of the following RBC's contain the H substance (L-Fucose)
Respuesta
-
O
-
A
-
B
Pregunta 9
Pregunta
Type AB has what added to the H substance?
Respuesta
-
N-Galactosamine
-
D- Galactose
-
N-Glucosamine
-
Acetyl CoA
Pregunta 10
Pregunta
Which of the following is the 'Universal Receiver'?
Respuesta
-
A
-
O
-
AB
Pregunta 11
Pregunta
How do blood grouping cards work?
Respuesta
-
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
Pregunta 12
Pregunta
1 in 40 people have Ig's other than ABO and Rhesus
Respuesta
- True
- False
Pregunta 13
Pregunta
How many Ig's (other than ABO and Rhesus) can cause haemolytic reactions
Respuesta
-
10
-
20
-
30
Pregunta 14
Pregunta
3 Cells are brought in as controls- why?
Respuesta
-
Between the three of them, they cover all 20 Ig's
-
Then the patient plasma is added, and the reaction studied
Pregunta 15
Pregunta
If the plasma reacts to any of the 20 Ig's, what happens?
Respuesta
-
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)
Pregunta 16
Pregunta
Pregnant women protect their fetuses by injecting Anti-D
Respuesta
- True
- False
Pregunta 17
Pregunta
What is cross matching?
Respuesta
-
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
Pregunta 18
Pregunta
Transfusions are necessary if >40% of blood is lost
Respuesta
- True
- False
Pregunta 19
Pregunta
What is an Exchange Transfusion?
Respuesta
-
Where all blood is taken out and replaced
-
Where two complimentary donors exchange blood
Pregunta 20
Pregunta
Exchange transfusion is used for babies with HDN
Respuesta
- True
- False
Pregunta 21
Pregunta
Why are antibodies the issue in blood transfusions?
Respuesta
-
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
Pregunta 22
Pregunta
RBC's are stored in 120-200 ml quantities
Respuesta
- True
- False
Pregunta 23
Pregunta
1 unit of RBC's is expected to raise blood Hb by how much?
Respuesta
-
1 g/dl
-
5 g/dl
-
10 g/dl
Pregunta 24
Pregunta
Blood is transfused over 2-3 hours
Respuesta
- True
- False
Pregunta 25
Pregunta
1 bag of RBC's costs how much?
Respuesta
-
£130
-
£140
-
£150
Pregunta 26
Pregunta
Plasma has a shelf life of _ and a half life of _ once unfrozen
Respuesta
-
2 years
-
1 year
-
6 months
-
4-8 hours
-
2-4 hours
Pregunta 27
Pregunta
With plasma, Universal Donor's and Receivers are reversed
Respuesta
- True
- False
Pregunta 28
Pregunta
Plasma is dosed at 12-15ml/kg
Respuesta
- True
- False
Pregunta 29
Pregunta
Plasma also contains
Respuesta
-
Clotting factors
-
Ig's
-
Drugs
Pregunta 30
Pregunta
A bag of plasma and clotting factors costs £40.00
Respuesta
- True
- False
Pregunta 31
Pregunta
Cryoprecipitate contains concentrated clotting factors and Ig's
Respuesta
- True
- False
Pregunta 32
Pregunta
Cryoprecipitate has a shelf life of _ at -30 degrees
Respuesta
-
2
-
1
-
3
Pregunta 33
Pregunta
When is cryoprecipitate added?
Respuesta
-
When fibrinogen is below 1g/l
-
When Factor V is below 5g/l
-
2 bags per dose
Pregunta 34
Pregunta
Platlets are stored at 22 degrees and cannot be refrigerated
Respuesta
- True
- False
Pregunta 35
Pregunta
Platelets have a shelf life of 7 days if...
Respuesta
-
it's kept agitated
-
it's kept frozen
-
it is stored in a vacuum
Pregunta 36
Pregunta
Platelets are given over 30 mins and increase blood count by 3-4 x 10^9
Respuesta
- True
- False
Pregunta 37
Pregunta
What is Aphoresis
Respuesta
-
Removal of a blood component
-
Removal of blood
-
Removal of body tissue
Pregunta 38
Pregunta
Platelets cost £20 a bag
Respuesta
- True
- False
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