My brother had O positive blood till 2002, but now when he checked with his doctor he told him that now his blood group has been changed to O negative and this happens to someone in hundreds, please reply me as i am worried about my brothers health.
2007-05-02 12:06:56 · 6 answers · asked by anjum f 1 in Science & Mathematics ➔ Medicine
Here's a couple of links to information about this phenomena. Don't worry too much. It is probably nothing.
http://www.blackwell-synergy.com/links/doi/10.1046/j.1365-2141.1998.00895.x
http://www.ingentaconnect.com/content/bsc/bjh/1998/00000102/00000005/art00012;jsessionid=9qo0rllm4jlig.alice?format=print
http://www.springerlink.com/content/c0ulpa9tadytknrf/
http://bloodjournal.hematologylibrary.org/cgi/content/full/bloodjournal%3b95/2/375
2007-05-02 12:16:32 · answer #1 · answered by Sabina 5 · 0⤊ 0⤋
Since the Rh factor (positive or negative) is controlled by a gene in the DNA, it's not logical for the blood to change this trait.
2007-05-02 12:15:09 · answer #2 · answered by ecolink 7 · 0⤊ 0⤋
if the cross match (the blood test to determine blood group) was taken after he had 1. massive blood transfusion or 2. infusion of a type of IV fluid called dextrans, then the result may be wrong. otherwise i'm not aware of any causes of spontaneous change in blood group...
2007-05-06 03:57:28 · answer #3 · answered by bluepill193 1 · 0⤊ 0⤋
Sounds like nonsense to me!
I've never heard of a blood group changing.
2007-05-02 12:09:56 · answer #4 · answered by Anonymous · 0⤊ 0⤋
He is probably a 'weak D', that wasn't caught in the process, or its clerical error. The sample should be redrawn and retested before making any conclusions.
2007-05-02 17:51:27 · answer #5 · answered by TrueNorth 2 · 0⤊ 0⤋
what??? never heard of that... you had better consult with an expert. Perhaps one of his records is wrong/switched with someone elses?
2007-05-02 12:10:11 · answer #6 · answered by michael 6 · 0⤊ 0⤋