Blood Drug Testing

can blood type tests be altered?

Both my parents have an O blood type. When I joined the Navy 6 yrs ago, and took my blood test, it came out B+. I've been out of the Navy for over a year now and I just wanted to know if blood type tests can be altered.

Public Comments

1. No there is no way that the blood tests can be altered. Are you 100% sure that bothe of your parents are O blood type? This is a hard situation, I dont know if you have ever sat down and talked to them about it, but maybe it would be a good thing to sit them both down and ask them about it.
2. Before you go strolling out to get into a conversation of paternity and all that, get retested. the military occasionally messes up. I know of a few situations where a persons blood type got documented wrong. Just go into the clinic and ask them to run a blood type test. they should do it no problem. The only situation I'm aware of whre a person's blood type can change is because of a blood transfusion.
3. Actually, PA student is incorrect. The ONLY way a blood type can change is through a bone marrow transplant as it's cells in the bone marrow that make the blood cells. Red cells only live a maximum 120 days, so even if you got the wrong type in a transfusion ( and did not die or get very ill from an incompatible transfusion) it would only be a small amount of cells mixed in with all yours and they would be completely gone by 120 days. However, blood typing errors DO occur (yours, your parents). But to be very honest, two 00/00 (the two genes an O person carries) parents can not have a B child (BB or BO--they B still predominates). But, as you say, they are your parents--think of them as that.