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What is the primary purpose of compatibility testing in blood banking?

• To prevent life-threatening transfusion reactions

• To maximize in vivo survival of transfused red cells

• To detect clinically significant antibodies

• To determine the efficacy of transfusion

What is the purpose of the crossmatch in compatibility testing?

• To prevent transfusion reactions

• To detect donor units unlikely to survive once transfused

• To provide a working measure of successful transfusion

• To check the results of the antibody screen

What is the expected increase in hematocrit and hemoglobin levels after transfusing one unit of RBCs?

• Hematocrit: 1%, Hemoglobin: 1 g/dL

• Hematocrit: 2%, Hemoglobin: 2 g/dL

• Hematocrit: 3%, Hemoglobin: 1 g/dL

• Hematocrit: 4%, Hemoglobin: 3 g/dL

What are the steps involved in compatibility testing?

• Accurate patient identification, sample collection, antibody screening, crossmatch, blood product inspection

• Patient identification, sample labeling, review of past records, ABO and D phenotyping, crossmatch, blood product issuance

• Patient identification, sample collection, antibody screening, crossmatch, blood product inspection

• Accurate patient identification, sample labeling, review of past records, ABO and D phenotyping, crossmatch, blood product issuance

What are the requirements for patient identification and sample labeling?

• Labeling blood sample tubes in the presence of the patient, using two independent identifiers

• Labeling blood sample tubes in the presence of the patient, using the patient's first and last name

• Labeling blood sample tubes in the presence of the patient, using the patient's first and last name and an identification number

• Labeling blood sample tubes in the presence of the patient, using the patient's first and last name and a unique identification number

Why should pre-labeled tubes not be used for sample collection?

• To prevent a possible sample mix-up

• To ensure accurate patient identification

• To comply with good laboratory practice

• To avoid errors in sample labeling

Which type of sample is preferred for compatibility testing?

• Serum

• Plasma

• Whole blood

• Platelets

What is the recommended age limit for patient samples used in compatibility testing?

• 1 day

• 3 days

• 7 days

• 14 days

How long should patient samples and donor unit segments be stored following transfusion?

• 3 days

• 7 days

• 14 days

• 30 days