Posted November 9, 20177 yr comment_71456 Hello All, I am trying to revise our Blood bank policies and wanted to make some desirable changes in practice. We have been ordering " Antigen Tested Units " from our Blood supplier and have been repeating antigen testing in house to confirm them. I am not sure if we are required to repeat the testing because of regulations? I do not want my staff to repeat the testing. Can someone please enlighten me with details? Thanks in advance for your time.
November 9, 20177 yr comment_71457 Â When we order antigen testing, we don't re-test the unit. We do order historically tested units from our blood supplier and then we test it.
November 9, 20177 yr comment_71462 Â 2 hours ago, Kathyang said: When we order antigen testing, we don't re-test the unit. We do order historically tested units from our blood supplier and then we test it. That's what we do as well. Â If the unit comes from the supplier with an antigen test result on a separate tag, we do not retype it. Â We also get a historical database from our supplier to test our own units.
November 9, 20177 yr comment_71463 There are two types of "antigen negative" units we can get from our supplier here in Michigan.  One is "historically negative" -- those have to be retested when they arrive.  The other type is "confirmed" -- those units have been confirmed negative for a particular antigen at the supplier and do not need to be retested here. Scott
November 9, 20177 yr comment_71464 48 minutes ago, SMILLER said: There are two types of "antigen negative" units we can get from our supplier here in Michigan.  One is "historically negative" -- those have to be retested when they arrive.  The other type is "confirmed" -- those units have been confirmed negative for a particular antigen at the supplier and do not need to be retested here. Scott Our policy as well. Â
November 9, 20177 yr comment_71467 3 hours ago, SMILLER said: There are two types of "antigen negative" units we can get from our supplier here in Michigan.  One is "historically negative" -- those have to be retested when they arrive.  The other type is "confirmed" -- those units have been confirmed negative for a particular antigen at the supplier and do not need to be retested here. Scott This is our policy as well.
November 10, 20177 yr Author comment_71473 Thanks much for all the information. This Blood Bank community is of immense help & IÂ really value your opinion. I am fairly new at my job as a Lead and counting on you for advice.Â
November 10, 20177 yr comment_71490 We test if the patient already has the antibody. Â We've had units come in that were marked one thing but were actually the opposite.Â
November 10, 20177 yr comment_71492 1 hour ago, Baby Banker said: We test if the patient already has the antibody.  We've had units come in that were marked one thing but were actually the opposite. That is terrible - absolutely unacceptable.
November 11, 20177 yr comment_71493 In UK we don't have to worry about retyping donor unit. Our national blood service give 100% assurance of their testing.Â
November 14, 20177 yr comment_71509 On 11/9/2017 at 7:36 AM, SMILLER said: There are two types of "antigen negative" units we can get from our supplier here in Michigan.  One is "historically negative" -- those have to be retested when they arrive.  The other type is "confirmed" -- those units have been confirmed negative for a particular antigen at the supplier and do not need to be retested here. Scott We do it this way also.Â
November 14, 20177 yr comment_71512 AABB standard 5.13 states 5.13 Serologic Confirmation of Donor Blood Red Cell Antigen Other Than ABO/Rh Red Blood Cells products labelled as negative for red blood cell antigens other than ABO and RhD do not require repeat testing for the labeled antigens
November 14, 20177 yr comment_71513 10 minutes ago, Marianne said: AABB standard 5.13 states 5.13 Serologic Confirmation of Donor Blood Red Cell Antigen Other Than ABO/Rh Red Blood Cells products labelled as negative for red blood cell antigens other than ABO and RhD do not require repeat testing for the labeled antigens The above is interesting, and it is found under Transfusion Services standards.  Under collection facility standards, 5.8.4 says that untested units for "other" antigens may be labeled negative only if units from two previous donations were tested  by the collection facility.  Does anyone get this kind of information from their blood supplier?  We just either get a "confirmed negative" or a "historical negative" label, with the historical label specifically stating that confirmatory testing must  be done.  So I guess we are stuck with that.  Not really much of an issue here though! Scott
November 14, 20177 yr comment_71516 14 minutes ago, SMILLER said: The above is interesting, and it is found under Transfusion Services standards.  Under collection facility standards, 5.8.4 says that untested units for "other" antigens may be labeled negative only if units from two previous donations were tested  by the collection facility.  Does anyone get this kind of information from their blood supplier?  We just either get a "confirmed negative" or a "historical negative" label, with the historical label specifically stating that confirmatory testing must  be done.  So I guess we are stuck with that.  Not really much of an issue here though! Scott Is that collection facility standard referring to the actual product label, and not a hang tag or other type of tag?
November 14, 20177 yr comment_71518 Right. They also have to include things like expiration date. product code, etc. So between the tag from us and they label already on the unit, I guess it is all covered. Scott
November 14, 20177 yr comment_71523 We do the antigen testing for units ordered from our blood service. We have found units that were supposedly negative for an antigen but actually positive. We also are required by our computer system to enter the antigen testing results for a unit before it will allow the selection of that unit to a patient with the corresponding antibody. Â
November 15, 20177 yr comment_71529 19 hours ago, BldBnker said: We do the antigen testing for units ordered from our blood service. We have found units that were supposedly negative for an antigen but actually positive. We also are required by our computer system to enter the antigen testing results for a unit before it will allow the selection of that unit to a patient with the corresponding antibody.  How do you handle those that you don't have antisera for - like Vel for example?
November 15, 20177 yr comment_71532 4 hours ago, AMcCord said: How do you handle those that you don't have antisera for - like Vel for example? I am glad you asked that AMcCord! I was going to ask the same, but thought I might be accused of going over the top. Now I would have felt justified.
November 19, 20177 yr comment_71575 On 11/14/2017 at 9:17 AM, Marianne said: AABB standard 5.13 states 5.13 Serologic Confirmation of Donor Blood Red Cell Antigen Other Than ABO/Rh Red Blood Cells products labelled as negative for red blood cell antigens other than ABO and RhD do not require repeat testing for the labeled antigens Based on these standard we stoped retyping the units but we have internal process to check the clerical entry by our staff.
November 19, 20177 yr comment_71576 On 11/14/2017 at 9:34 AM, SMILLER said: The above is interesting, and it is found under Transfusion Services standards.  Under collection facility standards, 5.8.4 says that untested units for "other" antigens may be labeled negative only if units from two previous donations were tested  by the collection facility.  Does anyone get this kind of information from their blood supplier?  We just either get a "confirmed negative" or a "historical negative" label, with the historical label specifically stating that confirmatory testing must  be done.  So I guess we are stuck with that.  Not really much of an issue here though! Scott This standard is for collection facility and based on these standard BBTS standard was updated and stated that we do not need to retype the unit...
November 19, 20177 yr comment_71578 Right.  But please look at AABB standard 5.8.4.  As I mentioned above, the donor processing facility can only label a unit as tested negative (far a particular antigen) if that has been done on two separate occasions.  In that case, or if the unit in question was tested by the donor facility, the donor facility could indeed label the unit as "negative for RBC antigens".  Otherwise, it would have to be tested, either by the donor facility or when it reaches your blood bank. After all, every donation by a donor is typed twice for ABO before a patient gets it. Scott
November 20, 20177 yr comment_71591 Same as Eagle Eye and we just had a patient with Anti-Vel last month. Would not have been able to retest the units sent by our blood supplier.
December 8, 20177 yr comment_71806 We have the ability to program our system to accept "untested" units for selection for antigens that do not have available anti-sera, like Cob, Bga, or Vell etc.  We use SoftBank. Â
December 27, 20177 yr comment_71940 We don't retest because we do not have the antisera. So far we have not had any issues. We only stock Rh, K, FyA and JkA. Â
January 24, 20187 yr comment_72267 On ‎11‎/‎10‎/‎2017 at 12:38 PM, Malcolm Needs said: That is terrible - absolutely unacceptable. Yes terrible. I am hoping this was reported by the FDA by the blood supplier. Scary. @Baby Banker This should never happen ever. Edited January 24, 20187 yr by Gnapplec
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