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CTP EXAM ORGAN PRESERVATION QUESTIONS AND
CORRECT DETAILED SOLUTIONS LATEST UPDATED
How does the composition of preservation solutions affect organ viability?
A) It increases organ weight.
B) It stabilizes cellular membranes and reduces metabolic demands.
C) It promotes rapid cell growth.
D) It enhances immune responses.
B
Explanation: The composition of preservation solutions stabilizes cellular structures and reduces
metabolic activity, protecting the organ.
What is the function of antioxidants in preservation solutions?
A) To increase tissue temperature
B) To promote cell division
C) To reduce oxidative stress during ischemia-reperfusion
D) To thicken cellular membranes
C
Explanation: Antioxidants help mitigate oxidative stress that can occur during reperfusion.
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Which ingredient is commonly included in preservation solutions to maintain osmotic
balance?
A) Urea
B) Lactobionate
C) Hemoglobin
D) Collagen
B
Explanation: Lactobionate is often used to maintain osmotic balance and reduce cellular edema.
How does hypothermia enhance the effectiveness of preservation solutions?
A) It increases metabolic rates.
B) It dilutes the solution.
C) It enhances tissue rigidity.
D) It synergistically reduces cellular metabolism alongside the solution.
D
Explanation: Hypothermia works with the preservation solution to further reduce cellular
metabolism.
What is the primary role of impermeants in preservation solutions?
A) To enhance water movement into cells
B) To prevent cellular swelling by balancing fluid shifts
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C) To stimulate enzyme production
D) To increase blood flow
B
Explanation: Impermeants help prevent cellular swelling by balancing osmotic gradients during
preservation.
Which of the following is a key characteristic of an effective preservation solution?
A) High pH variability
B) Rapid warming effect
C) Ability to maintain ionic balance and reduce free radical damage
D) Promotion of rapid cellular division
C
Explanation: Effective solutions maintain ionic balance and protect against free radical damage
What role do colloids play in preservation solutions?
A) They facilitate rapid cooling.
B) They help maintain oncotic pressure and prevent cell lysis.
C) They increase cell metabolism.
D) They stimulate tissue growth.
B
Explanation: Colloids maintain oncotic pressure, reducing the risk of cell lysis during
preservation.
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How does the University of Wisconsin solution contribute to organ preservation?
A) By providing a balanced mixture of electrolytes, antioxidants, and impermeants
B) By warming the organ rapidly
C) By enhancing metabolic activity
D) By promoting cell division
A
Explanation: UW solution's balanced composition helps protect organs during cold storage
Which factor is critical when selecting a preservation solution for liver transplants?
A) The solution's color
B) Its ability to prevent bile duct injury and maintain liver enzyme stability
C) The speed of infusion
D) The volume of the solution
B
Explanation: Liver preservation solutions must protect against bile duct injury and maintain
enzyme stability
What is the primary purpose of organ preservation solutions?
A) To stimulate rapid cell division
B) To reduce cellular metabolism and prevent ischemic injury
C) To increase organ size
D) To enhance enzymatic activity
CTP EXAM ORGAN PRESERVATION QUESTIONS AND
CORRECT DETAILED SOLUTIONS LATEST UPDATED
How does the composition of preservation solutions affect organ viability?
A) It increases organ weight.
B) It stabilizes cellular membranes and reduces metabolic demands.
C) It promotes rapid cell growth.
D) It enhances immune responses.
B
Explanation: The composition of preservation solutions stabilizes cellular structures and reduces
metabolic activity, protecting the organ.
What is the function of antioxidants in preservation solutions?
A) To increase tissue temperature
B) To promote cell division
C) To reduce oxidative stress during ischemia-reperfusion
D) To thicken cellular membranes
C
Explanation: Antioxidants help mitigate oxidative stress that can occur during reperfusion.
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Which ingredient is commonly included in preservation solutions to maintain osmotic
balance?
A) Urea
B) Lactobionate
C) Hemoglobin
D) Collagen
B
Explanation: Lactobionate is often used to maintain osmotic balance and reduce cellular edema.
How does hypothermia enhance the effectiveness of preservation solutions?
A) It increases metabolic rates.
B) It dilutes the solution.
C) It enhances tissue rigidity.
D) It synergistically reduces cellular metabolism alongside the solution.
D
Explanation: Hypothermia works with the preservation solution to further reduce cellular
metabolism.
What is the primary role of impermeants in preservation solutions?
A) To enhance water movement into cells
B) To prevent cellular swelling by balancing fluid shifts
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C) To stimulate enzyme production
D) To increase blood flow
B
Explanation: Impermeants help prevent cellular swelling by balancing osmotic gradients during
preservation.
Which of the following is a key characteristic of an effective preservation solution?
A) High pH variability
B) Rapid warming effect
C) Ability to maintain ionic balance and reduce free radical damage
D) Promotion of rapid cellular division
C
Explanation: Effective solutions maintain ionic balance and protect against free radical damage
What role do colloids play in preservation solutions?
A) They facilitate rapid cooling.
B) They help maintain oncotic pressure and prevent cell lysis.
C) They increase cell metabolism.
D) They stimulate tissue growth.
B
Explanation: Colloids maintain oncotic pressure, reducing the risk of cell lysis during
preservation.
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How does the University of Wisconsin solution contribute to organ preservation?
A) By providing a balanced mixture of electrolytes, antioxidants, and impermeants
B) By warming the organ rapidly
C) By enhancing metabolic activity
D) By promoting cell division
A
Explanation: UW solution's balanced composition helps protect organs during cold storage
Which factor is critical when selecting a preservation solution for liver transplants?
A) The solution's color
B) Its ability to prevent bile duct injury and maintain liver enzyme stability
C) The speed of infusion
D) The volume of the solution
B
Explanation: Liver preservation solutions must protect against bile duct injury and maintain
enzyme stability
What is the primary purpose of organ preservation solutions?
A) To stimulate rapid cell division
B) To reduce cellular metabolism and prevent ischemic injury
C) To increase organ size
D) To enhance enzymatic activity
