KROK 1 2011 – Question 105 · KROK (Medicine) · Physiology
Before a surgery a blood sample of a 30-year-old man has been typed. Blood is Rh-positive. Standard serums of such groups as 0 αβ (I), Aβ (II), Bα (III) didn’t activate erythrocyte agglutination reaction. The group of the analyzed blood is:
- A. Aβ (II)
- B. 0 αβ (I)
- C. Bα (III)
- D. AB (IV)
- E. -
Hint
Each standard serum contains agglutinins that react with a specific antigen on red cells; consider what the complete absence of agglutination with all three sera implies about the cell antigens.
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