QuestionSBA
QuestionChoice
The blood cannot be group A as the cells do not agglutinate with anti-A. It also must be Rh +'ve as the cells agglutinate with anti-D.
10000599
d
Group A Rh -'ve
QuestionChoice
The blood cells are negative for anti-A and anti-B, meaning it is type O (as they contain neither A nor B antigens, and so do not agglutinate). The cells are then positive for anti-D, meaning they do have D antigens, making the blood Rh +'ve. The reverse matching in the final two tubes confirms the O-type blood by mixing the patient's plasma with A and B RBCs, which causes a positive result as type O plasma contains both A and B antibodies.
10000596
a
Group O Rh +'ve
QuestionChoice
This is the reverse interpretation of the results. Remember that the antibodies are in the plasma, and the antigens are on the RBC surface.
10000597
b
Group AB Rh -'ve
QuestionChoice
The blood is group O as its cells do not agglutinate with anti-A or anti-B, and group O blood cells do not have A or B antigens. However, it is Rh +'ve as the cells agglutinate with anti-D.
10000600
e
Group O Rh -'ve
QuestionChoice
The gel card shows that the patient's blood cells do not contain B antigens as they do not agglutinate with anti-B, therefore it cannot be group B. However, it is Rh +'ve, as seen by the blood cells agglutinating with anti-D.
10000598
c
Group B Rh +'ve
Concept
Chapter
2693
3796
Blood group compatibility
Topic
157
Haematology
12666
Picture
1506
Image 4.jpg
images/eq986ifl1682079617191.jpg
images/eq986ifl1682079617191_256.jpg
images/eq986ifl1682079617191_512.jpg
pPcFF4JvhIh1ZmaSZnaEx3Za9TYZTJAC
Topic
157
Haematology
The above image shows a gel card of a patient's blood sample. Which of the following is the patient's correct blood type?

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a