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ABO System: Antigens and Antibodies Quiz

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ABO System: Antigens and Antibodies Quiz

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Questions and Answers

Which statement about Rh groups is incorrect?

Blood group in Rh system is legitimate only after its double determination

There are 5 Rh antiserums used for testing the erythrocytes (anti-D, anti-C, anti- c, anti-E, anti-e); it is possible to determine Rh phenotypes (especially important for children)

Rh antigens are transmembrane proteins of erythrocytes and cannot be found in other cells or fluids in human body

Nowadays there are 45 known antigens, which are clinically important and even small dosage of these antigenes are immunogenous (correct)

When conducting a blood compatibility test, which statement is incorrect?

Tests for blood compatibility has to be done only in ABO and Rh systems (correct)

Recipient serum and donor erythrocytes meant for transfusion are tested for blood compatibility

The purpose of blood compatibility test – to prevent transfusion of non- compatible erythrocytes and haemolysis of transfused erythrocytes

For blood compatibility test double stage indirect Coombs test is used

Which fact is incorrect about the ABO system?

There are 2 different types of antibodies in blood serum (correct)

ABO system antigens are found on the surface of red blood cells

ABO system determines the presence or absence of antigens on red blood cells

ABO blood group system deals with antigens 'A' and 'B'

What is the name of the antibodies agglutinating A group erythrocytes in the ABO system?

Anti-A antibodies Signup and view all the answers

Which statement accurately describes the determination of the ABO system?

The legitimate determination is achieved using monoclonal reagents in the presence of the patient. Signup and view all the answers

Which of the following is a correct statement regarding platelets?

Platelets can be transfused in patients with anti-platelet antibodies. Signup and view all the answers

What is the most important efficacy criterion for evaluating platelet transfusion?

Increase in platelet count Signup and view all the answers

Which statement about cryoprecipitate is incorrect?

It is prepared by freeze-drying plasma proteins. Signup and view all the answers

Which of the following pharmacological agents is NOT used to improve topical haemostasis?

Epinephrine (Adrenaline) Signup and view all the answers

When can blood products be transfused according to protocols?

After blood group determination in ABO and Rh system, anti-erythrocyte antibody screening test, and blood compatibility test Signup and view all the answers