Тест по группам крови

What determines a person's blood type in the ABO system?

• Type of white blood cells

• Antigens on the surface of red blood cells

• Antibodies only in plasma

• Type of hemoglobin

A person with blood type A has which of the following antibodies in their plasma?

• Anti-A antibodies

• Anti-B antibodies

• Both Anti-A and Anti-B antibodies

• No antibodies

What type of antigen is present on the red blood cells of a person with blood type AB?

• Only antigen A

• Only antigen B

• Both antigens A and B

• No antigens

Which blood group is considered a universal donor?

• A+

• B–

• AB+

• O–

Which blood group is considered the universal recipient?

• AB+

• AB–

• O+

• A+

What does Rh-positive mean?

• A person does not have Rh antigen

• A person has Rh antibodies

• A person has Rh (D) antigen on erythrocytes

• A person lacks both A and B antigens

What happens if an Rh– mother carries an Rh+ child?

• No reaction ever occurs

• The child's erythrocytes may be destroyed in subsequent pregnancies

• The mother's erythrocytes are destroyed

• The child produces anti-Rh antibodies

What is the main cause of hemolytic disease of the newborn (HDN)?

• Incompatibility due to ABO

• Incompatibility due to Rh between mother and fetus

• Iron deficiency

• Vitamin K deficiency

What is cross-matching in blood transfusion?

• Checking only the ABO type

• Mixing the donor's serum with the recipient's red blood cells to check compatibility

• Testing hemoglobin levels

• Counting platelets

What prevents hemolytic disease in Rh– mothers?

• Iron supplements

• Vitamin K injection

• Rho(D) immunoglobulin (RhoGAM) injection

• Blood transfusion after delivery