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