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rajpurohit11's Question
Biology
Posted about 1 month ago
Explain each option
10 mcq with explanation about renal transplantation according to USMLE 
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Answer from Sia
Posted about 1 month ago
Sure, I can help you with that! Renal transplantation is a fascinating topic. Here are 10 multiple choice questions with explanations according to USMLE:

1. Which of the following is the most common type of renal transplantation?
   a) Living donor
   b) Deceased donor
   c) Xenotransplantation
   d) Autotransplantation
   Explanation: The correct answer is a) Living donor. This is the most common type of renal transplantation, where a kidney is donated by a living person, often a family member.

2. What is the most common complication following renal transplantation?
   a) Infection
   b) Rejection
   c) Thrombosis
   d) Hypertension
   Explanation: The correct answer is b) Rejection. Rejection of the transplanted kidney by the recipient's immune system is the most common complication following renal transplantation.

3. Which immunosuppressive medication is commonly used to prevent rejection in renal transplantation?
   a) Prednisone
   b) Cyclosporine
   c) Methotrexate
   d) Azathioprine
   Explanation: The correct answer is b) Cyclosporine. This medication is commonly used to suppress the recipient's immune system and prevent rejection of the transplanted kidney.

4. What is the ideal time frame for a successful renal transplantation?
   a) Within 1 year of starting dialysis
   b) Within 5 years of starting dialysis
   c) Within 10 years of starting dialysis
   d) Any time after starting dialysis
   Explanation: The correct answer is a) Within 1 year of starting dialysis. The earlier the transplantation, the better the outcomes.

5. Which of the following is a contraindication for renal transplantation?
   a) Age over 65 years
   b) Active malignancy
   c) Diabetes mellitus
   d) Hypertension
   Explanation: The correct answer is b) Active malignancy. Having an active malignancy is a contraindication for renal transplantation due to the risk of cancer recurrence.

6. What is the most common cause of graft failure following renal transplantation?
   a) Acute rejection
   b) Chronic rejection
   c) Infection
   d) Surgical complications
   Explanation: The correct answer is b) Chronic rejection. This is the most common cause of long-term graft failure following renal transplantation.

7. Which of the following is a potential complication of immunosuppressive medications used in renal transplantation?
   a) Hypertension
   b) Hyperglycemia
   c) Osteoporosis
   d) All of the above
   Explanation: The correct answer is d) All of the above. Immunosuppressive medications can lead to various complications including hypertension, hyperglycemia, and osteoporosis.

8. What is the role of HLA matching in renal transplantation?
   a) It is not important
   b) It determines the success of the transplantation
   c) It is only relevant for living donor transplants
   d) It is used to identify the recipient's blood type
   Explanation: The correct answer is b) It determines the success of the transplantation. HLA matching is important for reducing the risk of rejection and improving the success of the transplantation.

9. Which of the following is a potential long-term complication of renal transplantation?
   a) Recurrent kidney disease
   b) Cardiovascular disease
   c) Infection
   d) All of the above
   Explanation: The correct answer is d) All of the above. Long-term complications of renal transplantation can include recurrent kidney disease, cardiovascular disease, and infection.

10. What is the average lifespan of a transplanted kidney?
    a) 5-10 years
    b) 10-15 years
    c) 15-20 years
    d) 20-25 years
    Explanation: The correct answer is a) 5-10 years. While some transplanted kidneys can last much longer, the average lifespan is around 5-10 years.

I hope these questions and explanations help you in your studies! Let me know if you have any more questions about renal transplantation.

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