Test
Blood Transfusion
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Preguntas del test (38)
1Ag- Any substance that may be recognised as foreign
- AVerdadero
- BFalso
2What is this, and what is it for?
- AIg G
- BIg M
- CCrossing the placenta
3What is Ig M use for?
- ACrossing the placenta
- BRapid agglutination
- CBound to B cells
4The Rhesus positive allele is...
- ADominant
- BRecessive
- CCo-dominant
5Homozygous dd has the potential to produce Anti-D in what circumstances
- AIllness
- BIncorrect transfusion
- CPregnancy
6Sensitisation- binding of Ig to individual blood cell
- AVerdadero
- BFalso
7Agglutination is visible when
- AThe Ig binds
- BA lattice is formed
- CThe blood cells lyse
8Which of the following RBC's contain the H substance (L-Fucose)
- AO
- BA
- CB
9Type AB has what added to the H substance?
- AN-Galactosamine
- BD- Galactose
- CN-Glucosamine
- DAcetyl CoA
10Which of the following is the 'Universal Receiver'?
- AA
- BO
- CAB
11How do blood grouping cards work?
- ATiny columns of small beads with Ig's bound
- BIf blood agglutinates due to Ig's, it cannot pass through column
- CIf blood agglutinates due to Ig's, it sinks to the bottom of the column
121 in 40 people have Ig's other than ABO and Rhesus
- AVerdadero
- BFalso
13How many Ig's (other than ABO and Rhesus) can cause haemolytic reactions
- A10
- B20
- C30
143 Cells are brought in as controls- why?
- ABetween the three of them, they cover all 20 Ig's
- BThen the patient plasma is added, and the reaction studied
15If the plasma reacts to any of the 20 Ig's, what happens?
- AThey're tested against 10 donors (process of elimination)
- BThey're tested against 20 donors (process of elimination)
- CThey're tested against 15 donors (process of elimination)
16Pregnant women protect their fetuses by injecting Anti-D
- AVerdadero
- BFalso
17What is cross matching?
- AThe patients plasma is mixed with potential donor cells and the reaction studied after 40 mins
- BThe patients RBC's are mixed with proteintial plasma and the reaction studied after 40 mins
18Transfusions are necessary if >40% of blood is lost
- AVerdadero
- BFalso
19What is an Exchange Transfusion?
- AWhere all blood is taken out and replaced
- BWhere two complimentary donors exchange blood
20Exchange transfusion is used for babies with HDN
- AVerdadero
- BFalso
21Why are antibodies the issue in blood transfusions?
- AThey are much more abundant than RBC's
- BRBC's don't contain the MAC Class 1 marker that allows self cells to be identified
- CRBC reactions can be easily stopped
22RBC's are stored in 120-200 ml quantities
- AVerdadero
- BFalso
231 unit of RBC's is expected to raise blood Hb by how much?
- A1 g/dl
- B5 g/dl
- C10 g/dl
24Blood is transfused over 2-3 hours
- AVerdadero
- BFalso
251 bag of RBC's costs how much?
- A£130
- B£140
- C£150
26Plasma has a shelf life of _ and a half life of _ once unfrozen
- A2 years
- B1 year
- C6 months
- D4-8 hours
- E2-4 hours
27With plasma, Universal Donor's and Receivers are reversed
- AVerdadero
- BFalso
28Plasma is dosed at 12-15ml/kg
- AVerdadero
- BFalso
29Plasma also contains
- AClotting factors
- BIg's
- CDrugs
30A bag of plasma and clotting factors costs £40.00
- AVerdadero
- BFalso
31Cryoprecipitate contains concentrated clotting factors and Ig's
- AVerdadero
- BFalso
32Cryoprecipitate has a shelf life of _ at -30 degrees
- A2
- B1
- C3
33When is cryoprecipitate added?
- AWhen fibrinogen is below 1g/l
- BWhen Factor V is below 5g/l
- C2 bags per dose
34Platlets are stored at 22 degrees and cannot be refrigerated
- AVerdadero
- BFalso
35Platelets have a shelf life of 7 days if...
- Ait's kept agitated
- Bit's kept frozen
- Cit is stored in a vacuum
36Platelets are given over 30 mins and increase blood count by 3-4 x 10^9
- AVerdadero
- BFalso
37What is Aphoresis
- ARemoval of a blood component
- BRemoval of blood
- CRemoval of body tissue
38Platelets cost £20 a bag
- AVerdadero
- BFalso
Información
- Descripción
- (Blood Transfusions) Haematology and Anatomy Test sobre Blood Transfusion, creado por gina_evans0312 el 09/01/2014.
- Autor
- gina_evans0312
- Idioma
- English
- Visitas
- 560
- Etiquetas
- Valoración
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