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CCTC NATCO EXAM NEWEST 2026/ 2027 ACTUAL
EXAM TEST BANK| COMPLETE 300 REAL EXAM
QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) ALREADY GRADED A+| NATCO
CCTC EXAM REVIEW (BRAND NEW!!)
1. The immune system recognizes the antigens of a
transplanted organ as:
A) Self
B) Non-self
C) Friendly
D) Harmless
E) Inactive
Answer: B
Rationale: The immune system recognizes the antigens (HLA
proteins) on a transplanted organ as foreign or "non-self"
1
,2
because they differ from the recipient's own HLA antigens. This
recognition triggers the immune response leading to rejection.
This is the fundamental challenge of transplantation immunology .
2. What is auto-transplantation?
A) Transplantation between genetically identical individuals
B) Transplantation between genetically different individuals of
the same species
C) Transplantation of self tissue from one site to another in the
same individual
D) Transplantation between two different species
E) Transplantation of manufactured tissue
Answer: C
Rationale: Auto-transplantation involves transplanting tissue from
one site to another within the same individual (e.g., autologous
skin grafts, bone marrow harvesting for later reinfusion). Since it
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,3
is self-tissue, it is NOT detected as foreign and no rejection
occurs .
3. Iso-transplantation refers to transplantation:
A) Of self tissue
B) Between genetically identical individuals (identical twins)
C) Between genetically different individuals of the same species
D) Between two different species
E) Using artificial organs
Answer: B
Rationale: Iso-transplantation occurs between genetically
identical individuals—specifically identical twins. Because the
donor and recipient are genetically identical, the immune system
does NOT activate a rejection response. The graft is called an
isograft .
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4. Allotransplantation is defined as transplantation:
A) Of self tissue
B) Between genetically identical individuals
C) Between genetically different individuals of the same species
D) Between two different species
E) Using synthetic materials
Answer: C
Rationale: Allotransplantation is transplantation between
genetically different individuals of the same species. This is the
most common type of human transplantation (e.g., most deceased
donor and living unrelated donor transplants). This WILL trigger
an immune response requiring immunosuppression. The graft is
called an allograft .
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CCTC NATCO EXAM NEWEST 2026/ 2027 ACTUAL
EXAM TEST BANK| COMPLETE 300 REAL EXAM
QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) ALREADY GRADED A+| NATCO
CCTC EXAM REVIEW (BRAND NEW!!)
1. The immune system recognizes the antigens of a
transplanted organ as:
A) Self
B) Non-self
C) Friendly
D) Harmless
E) Inactive
Answer: B
Rationale: The immune system recognizes the antigens (HLA
proteins) on a transplanted organ as foreign or "non-self"
1
,2
because they differ from the recipient's own HLA antigens. This
recognition triggers the immune response leading to rejection.
This is the fundamental challenge of transplantation immunology .
2. What is auto-transplantation?
A) Transplantation between genetically identical individuals
B) Transplantation between genetically different individuals of
the same species
C) Transplantation of self tissue from one site to another in the
same individual
D) Transplantation between two different species
E) Transplantation of manufactured tissue
Answer: C
Rationale: Auto-transplantation involves transplanting tissue from
one site to another within the same individual (e.g., autologous
skin grafts, bone marrow harvesting for later reinfusion). Since it
2
,3
is self-tissue, it is NOT detected as foreign and no rejection
occurs .
3. Iso-transplantation refers to transplantation:
A) Of self tissue
B) Between genetically identical individuals (identical twins)
C) Between genetically different individuals of the same species
D) Between two different species
E) Using artificial organs
Answer: B
Rationale: Iso-transplantation occurs between genetically
identical individuals—specifically identical twins. Because the
donor and recipient are genetically identical, the immune system
does NOT activate a rejection response. The graft is called an
isograft .
3
, 4
4. Allotransplantation is defined as transplantation:
A) Of self tissue
B) Between genetically identical individuals
C) Between genetically different individuals of the same species
D) Between two different species
E) Using synthetic materials
Answer: C
Rationale: Allotransplantation is transplantation between
genetically different individuals of the same species. This is the
most common type of human transplantation (e.g., most deceased
donor and living unrelated donor transplants). This WILL trigger
an immune response requiring immunosuppression. The graft is
called an allograft .
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