A patient's blood sample agglutinates with both Anti-A and Anti-D sera. What is the patient's blood group?
Understand the Problem
The question is asking to identify a patient's blood group based on agglutination results with Anti-A and Anti-D sera. Agglutination with Anti-A indicates the presence of A antigens, and agglutination with Anti-D indicates the presence of Rh D antigens (positive).
Answer
A positive (A+)
The patient's blood group is A positive (A+). Agglutination with Anti-A indicates the presence of A antigens, and agglutination with Anti-D (Rh) indicates the presence of Rh factor, making it positive.
Answer for screen readers
The patient's blood group is A positive (A+). Agglutination with Anti-A indicates the presence of A antigens, and agglutination with Anti-D (Rh) indicates the presence of Rh factor, making it positive.
More Information
Blood typing is a method to determine a person's ABO blood group. The two major blood group systems are the ABO and Rh system.
Tips
A common mistake is confusing the presence of agglutination with the absence of a particular antigen. Remember, agglutination indicates the antigen is present.
Sources
- If blood agglutinates with anti-A and anti-Rh-D, what is the ... - Socratic - socratic.org
- Blood typing: MedlinePlus Medical Encyclopedia - medlineplus.gov
- Blood cell indices - Blood typing - the ABO system - medicine.mcgill.ca
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