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tuffgrrrrl

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About tuffgrrrrl

  • Birthday 03/16/1980

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  • Location
    Texas
  • Occupation
    Chemistry medical technologist at a 400 bed facility with 2 busy ER Centers, and a wellness center on site.

tuffgrrrrl's Achievements

  1. Hi, there thanks everyone for help in the past btw. I love BB but it can be overwhelming when we have so many classes and I feel we really do not get enough time to soak in the material at all. Just trying to stay afloat. Ok so, I'm stumped with this case study I would appreciate any help. A man was typed as A,B, negative. No other immunologic tests were done because the patient went into shock from blood loss and needed transfusion STAT. No antibody screen, no crossmatch was done. The bloodbank had no A,B negative blood so they gave him 6 units of O neg. Some days later he is still "bleeding". The MD says that this patient now needs 6 more units of packed cells and 4 units of plasma. The results of ABO RH typing on UNwashed cells were as follows: anti-A: 2+MF anti-B: 2+ MF A1 cells: 1+ weak B cells: 1+ weak auto con: 1+ MF anti-D: 1+ MFA Weak D: 2+ MFA DAT: 2+ MFA Ok, I'm sorry that this is so long but i cannot ask the question without giving you this information. I know that this patient's ABO type is probably A,B, weak D. I also know that this patient probably has an unexpected antibody because the DAT was positive. I know that we are seeing MFA on forward typing because the patient has 2 populations of blood cells in his system. My question is why is the reverse typing done with the A1 and B cells positive? The O cells have no antibodies in them because it was packed cells which were given and the donor is always tested for bound antibodies if I am not mistaken. So, why the MFA with the A1 and B cells please explain. thanks in advance for any help
  2. Thank you for your response it really helped me. Your response was so basic and well worded.
  3. I am confused about I antigens. My book states that most adults carry the I antigen. I know that it is a cold agglutinin so not clinically significant, but a little bit later down in the paragraph it says that most adults have anti-I if tested at 4C. Is this true and if so why? Does that mean that if we performed our tests at 4C that we would mostly always get a positive because of this antigen. I know that this antibody is often the cause of cold agglutinin disease. How could we tell if this is the case if most people carry this antigen and this antibody. Help is appreciated in advance. thank you
  4. An older man aged 62 has carcinoma of the colon and Proteus vulgaris has been isolated in his blood. He has a low hemoglobin and the M.D has decided to transfuse 2 units of packed cells and the crossmatch is ordered. Also 2 years prior he had some G.I bleeding and required 4 units of group A Rh+ red cells and there was no problem at that time. Current grouping results are: Anti-A 4+ Anti-B 1+ A1 cells neg B cells 4+ Sal auto neg anti-D 3+ 6% alb neg What is causing this discrepancy and whatblood group does he need and shuld he recieve washed rbcs, whole blood or packed rbs?
  5. Thanks for the recommendation. We are using a text called Immunohematology, Principles and Practice by Eva Quinley. I am new but I do not recommend this book. It is the first year that my school is using it and there are many errors in this book and is sometimes light on explanation. Silly me I thought that there was nothing that could not simply be "looked up" online!
  6. Thank you so much for your explanation. She provided the package insert to us (the following week after the lab). Thanks again!
  7. Hi everyone. I am a student and I'm new here I hope I do not annoy anyone with really dumb questions but here is your chance to help someone who wants to learn. OK, today we did a lab called "Bloodbanking QC". We do not have any lab procedure to follow really and I cannot recall each step of my lab or what I did each step for please help me. We were testing our reagents ect and we used the Ortho Confidence system. We had 3 tubes labeled SC1, SC2, SC3. What is in those?? I believe we used some bottles with cells in them labeled 1, 2 and 3 from Ortho. She said that they basically represented our unknown patient. They were my screening cells. I been looking online and I cannot believe that I cant find somewhere to clearly explain this procedure. What cells were in those bottles please? Q:2 Also when we used ourOrtho confiedence Cell A1Brr with Anti-A, Anti-B, Anti A,B and Anti-D, Rh control I believe that we added IgG to one or all of those tubes. What makes sense and why?
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