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Clinical Case Study Immune System Remember Mr. Ayers, the bus driver from Chapter 17? When we last saw him, he was headed for surgery. Although his dissected aorta was repaired, by the time surgical exposure and blood vessel clamping had been achieved, the dissection had extended up into the origin of his left common carotid artery. As a result, a clot formed that caused a massive stroke. Unfortunately, this left him with severe and permanent brain damage, and he was declared brain dead. A discussion of Mr. Ayers's situation with his family confirmed his status as an organ donor. The organ recovery coordinator evaluated Mr. Ayers's suitability as a candidate for organ donation. Tissue typing (histocompatibility) tests were conducted, and the results were entered into the UNOS (United Network for Organ Sharing) database. Two potential recipients were identified. Mr. Ayers's right kidney was given in transplantation to a 35-year-old man, and his left kidney was given to a 27-year-old woman. Following surgery, both recipients were placed on immunosuppressive drug therapy. 1. In organ transplants, the transplanted organ is referred to as a graft. What type of graft is represented by the two kidneys that Mr. Ayers has donated? 2. Tissue typing characterizes the class I and II MHC proteins. What is an MHC protein? 3. What is the difference between dass I and class II MHC proteins? 4. Why is the matching of the MHC molecules and the tissue compatibility so important in this case? 5. Why were the recipients of the two kidneys put on immunosuppressive drug therapy?

Clinical Case Study Immune System Remember Mr. Ayers, the bus driver from Chapter 17? When we last saw him, he was headed for surgery. Although his dissected aorta was repaired, by the time surgical exposure and blood vessel clamping had been achieved, the dissection had extended up into the origin of his left common carotid artery. As a result, a clot formed that caused a massive stroke. Unfortunately, this left him with severe and permanent brain damage, and he was declared brain dead. A discussion of Mr. Ayers's situation with his family confirmed his status as an organ donor. The organ recovery coordinator evaluated Mr. Ayers's suitability as a candidate for organ donation. Tissue typing (histocompatibility) tests were conducted, and the results were entered into the UNOS (United Network for Organ Sharing) database. Two potential recipients were identified. Mr. Ayers's right kidney was given in transplantation to a 35-year-old man, and his left kidney was given to a 27-year-old woman. Following surgery, both recipients were placed on immunosuppressive drug therapy. 1. In organ transplants, the transplanted organ is referred to as a graft. What type of graft is represented by the two kidneys that Mr. Ayers has donated? 2. Tissue typing characterizes the class I and II MHC proteins. What is an MHC protein? 3. What is the difference between dass I and class II MHC proteins? 4. Why is the matching of the MHC molecules and the tissue compatibility so important in this case? 5. Why were the recipients of the two kidneys put on immunosuppressive drug therapy?

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Clinical Case Study: Immune System

Clinical Case Study Immune System Remember Mr. Ayers, the bus driver from Chapter 17? When we last saw him, he was headed for surgery. Although his dissected aorta was repaired, by the time surgical exposure and blood vessel clamping had been achieved, the dissection had extended up into the origin of his left common carotid artery. As a result, a clot formed that caused a massive stroke. Unfortunately, this left him with severe and permanent brain damage, and he was declared brain dead. A discussion of Mr. Ayers's situation with his family confirmed his status as an organ donor. The organ recovery coordinator evaluated Mr. Ayers's suitability as a candidate for organ donation. Tissue typing (histocompatibility) tests were conducted, and the results were entered into the UNOS (United Network for Organ Sharing) database. Two potential recipients were identified. Mr. Ayers's right kidney was given in transplantation to a 35-year-old man, and his left kidney was given to a 27-year-old woman. Following surgery, both recipients were placed on immunosuppressive drug therapy. 1. In organ transplants, the transplanted organ is referred to as a graft. What type of graft is represented by the two kidneys that Mr. Ayers has donated? 2. Tissue typing characterizes the class I and II MHC proteins. What is an MHC protein? 3. What is the difference between dass I and class II MHC proteins? 4. Why is the matching of the MHC molecules and the tissue compatibility so important in this case? 5. Why were the recipients of the two kidneys put on immunosuppressive drug therapy?
Transcribed Image Text:Clinical Case Study Immune System Remember Mr. Ayers, the bus driver from Chapter 17? When we last saw him, he was headed for surgery. Although his dissected aorta was repaired, by the time surgical exposure and blood vessel clamping had been achieved, the dissection had extended up into the origin of his left common carotid artery. As a result, a clot formed that caused a massive stroke. Unfortunately, this left him with severe and permanent brain damage, and he was declared brain dead. A discussion of Mr. Ayers's situation with his family confirmed his status as an organ donor. The organ recovery coordinator evaluated Mr. Ayers's suitability as a candidate for organ donation. Tissue typing (histocompatibility) tests were conducted, and the results were entered into the UNOS (United Network for Organ Sharing) database. Two potential recipients were identified. Mr. Ayers's right kidney was given in transplantation to a 35-year-old man, and his left kidney was given to a 27-year-old woman. Following surgery, both recipients were placed on immunosuppressive drug therapy. 1. In organ transplants, the transplanted organ is referred to as a graft. What type of graft is represented by the two kidneys that Mr. Ayers has donated? 2. Tissue typing characterizes the class I and II MHC proteins. What is an MHC protein? 3. What is the difference between dass I and class II MHC proteins? 4. Why is the matching of the MHC molecules and the tissue compatibility so important in this case? 5. Why were the recipients of the two kidneys put on immunosuppressive drug therapy?
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