Academic literature on the topic 'Pre-transfusion tests'

El Kenz, Hanane, and Philippe Van der Linden. The physiology of blood in anaesthetic practice. Edited by Jonathan G. Hardman. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780199642045.003.0011.

Fox, Grenville, Nicholas Hoque, and Timothy Watts. Antenatal care, obstetrics, and fetal medicine. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780198703952.003.0001.

Nedelcu, Elena. "Pre-Analytical Issues and Interferences in Transfusion Medicine Tests." In Accurate Results in the Clinical Laboratory. Elsevier, 2013. http://dx.doi.org/10.1016/b978-0-12-415783-5.00017-7.

Ferraz, Ana Silva, Vitor Hugo Carvalho, and José Machado. "Prototype Implementation and Automatic Determination of Pre-Transfusion Tests Based on Image Processing." In Encyclopedia of E-Health and Telemedicine. IGI Global, 2016. http://dx.doi.org/10.4018/978-1-4666-9978-6.ch027.

Tyagi, Rinki, and Geetanjali . "RMSE Computation and Detection of Ring P. Falciparum." In Artificial Intelligence and Communication Technologies. Soft Computing Research Society, 2023. http://dx.doi.org/10.52458/978-81-955020-5-9-76.

Glied, Sherry. "The Circulation of the Blood AIDS, Blood, and the Economics of Information." In Blood Feuds. Oxford University PressNew York, NY, 1999. http://dx.doi.org/10.1093/oso/9780195129298.003.0012.

"The effect of homologous blood transfusion on delayed hypersensitivity skin test response has been studied using tetanus and diphtheria toxoids, streptococcus, tuberculin, Proteus, Candida and trichophyton antigens (4). Postoperative skin test response area decreased 57% in transfused patients compared to a 38% decrease in untransfused patients. Since transfused and untransfused patients differed significantly in duration of surgery, preoperative blood hemoglobin and serum albumin, the authors reanalyzed their data with 64 pairs of patients matched for these variables with the same results. The predictive value of delayed hypersensitivity skin testing for sepsis and mortality has not been accepted by all investigators. Brown et al. (5) agree that anergic patients have significantly higher rates of sepsis and mortality than normal responders, however "careful study of the temporal relationship between skin reactions and clinical events in individual patients suggested that these differences were not of value in clinical practice. Abnormal reactions usually followed obvious complications such as sepsis or secondary hemorrhage rather than predicted them. Anergy to skin testing may be related to a circulating serum factor which appears after trauma and causes lymphocyte suppression. There is no proven association of blood transfusion with serum suppressive activity or with anergy. Infectious complications and hospital stay are both significantly related to immunosuppressive serum and anergy. Lymphocyte Subsets Lymphocytes, B cells, T cells, helper cells and suppresser cells drop significantly five days after surgery and the decline is twice as great in the transfused patients compared to the untransfused (6). Helper cell number declines in transfused patients cause the helper/suppresser ratio to decrease significantly despite a significant decline in suppresser cell number. Changes in cell numbers recover somewhat by ten days so the differences between transfused and untransfused patients are no longer statistically significant although cell numbers in transfused patients are still lower than those in untransfused patients. Lymphocyte responses to ConA and PHA decline significantly in transfused groups, remaining below preoperative levels even one year following surgery. Response to ConA and PHA and MLR's in untransfused patients are significantly higher than in transfused patients at 90 days and 45 - 60 days respectively. Significant declines in immunoglobulin G, A and M cells are noted postoperatively in both transfused and untransfused patients. Other authors have not observed consistent changes in lymphocyte subsets in relation to transfusion. Changes in the numbers of lymphocytes in the various subsets in relation to surgery with and without blood transfusions studied in patients tested before and after surgery and in patients tested one week following transfusion alone, surgery alone or both reveal no evidence of suppression of immunity by surgery or blood transfusion (7). Generally surgery is followed by significant decreases in peripheral blood lymphocyte numbers affecting all lymphocyte subsets to some degree. Declines in helper cell numbers are associated with a significant decrease in the helper/suppresser ratio. It is not clear if transfused patients exhibit greater declines in lymphocytes due to the transfusion, due to the operative trauma, or due to pre-existing anemia which caused physicians to transfuse blood." In Transfusion Immunology and Medicine. CRC Press, 1995. http://dx.doi.org/10.1201/9781482273441-22.

Wijaya, Nur Hudha, Wisnu Kartika, Rinasa Agistya Anugrah, Wisnu Kusuma Wardhana, and Fatikha Ainuninda Norsi. "Gel Test Card Based on Crossmatching Centrifuge for Pre-Blood Transfusion." In 2024 4th International Conference on Electronic and Electrical Engineering and Intelligent System (ICE3IS). IEEE, 2024. https://doi.org/10.1109/ice3is62977.2024.10776006.

Ferraz, Ana, Jose Machado, and Vitor Carvalho. "Prototype for determination of pre-transfusion tests based on image processing techniques." In 2015 IEEE 4th Portuguese Meeting on Bioengineering (ENBENG). IEEE, 2015. http://dx.doi.org/10.1109/enbeng.2015.7088849.