URS 6030 EXAM 2 | Questions with
N
Complete Solution | Graduate Nursing
| Advanced Pathophysiology &
Pharmacology | Pass Guaranteed - A+
Graded
[DOMAIN 1: CANCER BIOLOGY & TUMOR GENETICS - 60 Questions]**
### **Basic Definitions & Characteristics**
* *Question 1**
A nurse is reviewing the pathology report for a patient with a newly diagnosed tumor. The report
describes the tumor as "well-differentiated, encapsulated, and non-invasive." Based on these
characteristics, the nurse should document this tumor as:
A) Malignant with high metastatic potential
B) Benign with localized growth **[CORRECT]**
C) Pre-malignant requiring immediate intervention
D) Metastatic carcinoma with lymph node involvement
* *Rationale:** Benign tumors are characterized by well-differentiated cells that resemble normal
tissue, encapsulated growth patterns that contain the tumor, and lack of invasion into
surrounding tissues. Malignant tumors demonstrate poor differentiation, lack of encapsulation,
and invasive growth with metastatic potential.
* *Question 2**
Which statement best describes the fundamental difference between benign and malignant
tumors?
A) Benign tumors always resolve spontaneously while malignant tumors require treatment
B) Benign tumors are always smaller than malignant tumors
C) Benign tumors lack metastatic capability while malignant tumors can metastasize
**[CORRECT]**
D) Benign tumors only occur in epithelial tissue while malignant tumors occur in connective
tissue
,* *Rationale:** The defining characteristic distinguishing benign from malignant tumors is the
ability to metastasize. While benign tumors may grow large and cause local effects, they cannot
spread to distant sites. Malignant tumors have the capacity for both local invasion and distant
metastasis.
* *Question 3**
A nursing student asks the instructor to explain the term "neoplasia." The most accurate
response is:
A) "It refers specifically to cancerous growth only"
B) "It means 'new growth' and refers to abnormal cell proliferation that may be benign or
malignant" **[CORRECT]**
C) "It describes the process of programmed cell death"
D) "It indicates a viral infection causing cellular transformation"
* *Rationale:** Neoplasia literally means "new growth" and encompasses both benign and
malignant abnormal cellular proliferations. It does not specify cancer specifically, nor does it
refer to apoptosis (programmed cell death) or infectious processes.
* *Question 4**
Which characteristic is shared by both benign and malignant tumors?
A) Ability to metastasize to distant organs
B) Uncontrolled cell proliferation **[CORRECT]**
C) Poor cellular differentiation
D) Invasion of surrounding tissues
* *Rationale:** Both benign and malignant tumors demonstrate uncontrolled cell proliferation.
However, only malignant tumors show poor differentiation, invasion of surrounding tissues, and
metastatic capability. Benign tumors maintain relatively normal cellular appearance and growth
patterns.
* *Question 5**
A patient asks the nurse why their benign lipoma needs to be monitored even though it's "not
cancer." The best response is:
A) "Benign tumors can transform into malignant tumors within 24 hours"
B) "Benign tumors can grow and cause pressure effects on surrounding structures"
**[CORRECT]**
C) "All tumors require chemotherapy regardless of type"
D) "Benign tumors always become malignant eventually"
* *Rationale:** While benign tumors do not metastasize, they can grow progressively larger and
cause symptoms through mass effect, pressure on adjacent structures, or obstruction. This
explains why monitoring or removal may be necessary despite the benign nature.
**Question 6**
, he process of programmed cell death that maintains tissue homeostasis by balancing cell birth
T
with cell death is called:
A) Mitosis
B) Apoptosis **[CORRECT]**
C) Necrosis
D) Carcinogenesis
* *Rationale:** Apoptosis is programmed cell death that eliminates damaged, aged, or
unnecessary cells without inflammation. In normal tissue, apoptosis balances cell proliferation.
Cancer cells evade apoptosis, allowing uncontrolled survival and accumulation.
* *Question 7**
Which statement about apoptosis in cancer is accurate?
A) Cancer cells have accelerated apoptosis compared to normal cells
B) Cancer cells evade apoptosis, allowing continued survival and proliferation **[CORRECT]**
C) Apoptosis is the primary mechanism of cancer cell death during metastasis
D) Apoptosis rates are identical in cancerous and normal tissues
* *Rationale:** A hallmark of cancer is evasion of apoptosis. Cancer cells develop mechanisms
to resist programmed cell death signals, allowing them to survive despite DNA damage and
abnormal growth signals. This contributes to tumor persistence and growth.
* *Question 8**
A tumor is described as "anaplastic." This indicates:
A) The tumor is benign and well-differentiated
B) The tumor shows loss of differentiation and severe cellular atypia **[CORRECT]**
C) The tumor is encapsulated and slow-growing
D) The tumor has metastasized to lymph nodes
* *Rationale:** Anaplasia refers to the loss of cellular differentiation characteristic of malignant
tumors. Anaplastic cells appear primitive, lack normal tissue architecture, and demonstrate
marked pleomorphism. This indicates aggressive malignant behavior.
### **Cell Cycle Phases**
* *Question 9**
A patient receiving chemotherapy asks why treatment is scheduled in cycles. The nurse
explains that chemotherapy is most effective during which phase of the cell cycle?
A) G₀ phase when cells are resting
B) S phase when DNA synthesis occurs
C) M phase when cells are actively dividing **[CORRECT]**
D) G₁ phase when cells are preparing for DNA synthesis
, * *Rationale:** Most chemotherapeutic agents target actively dividing cells during the M (mitosis)
phase when cells are most vulnerable to agents that disrupt DNA replication or cell division.
Cells in G₀ (resting phase) are generally resistant to chemotherapy.
* *Question 10**
Which cell types are commonly found in the G₀ (resting) phase under normal conditions?
A) Skin cells and gastrointestinal epithelium
B) Neurons and cardiac muscle cells **[CORRECT]**
C) Bone marrow cells and hair follicles
D) Oral mucosa and nail beds
* *Rationale:** Neurons and cardiac muscle cells are stable cells that typically remain in G₀
phase and do not divide under normal circumstances. This explains why these tissues are less
susceptible to chemotherapy-induced damage compared to rapidly dividing tissues like skin, GI
epithelium, and bone marrow.
* *Question 11**
During which phase of the cell cycle does DNA replication occur?
A) G₁ phase
B) S phase **[CORRECT]**
C) G₂ phase
D) M phase
* *Rationale:** DNA synthesis (replication) occurs during the S (synthesis) phase. During this
phase, the cell duplicates its DNA content in preparation for mitosis. This is why rapidly dividing
cells (skin, GI tract, bone marrow) are common sites for cancer development.
* *Question 12**
The nurse is educating a patient about targeted cancer therapy. The patient asks how these
drugs work differently from traditional chemotherapy. The nurse should explain that targeted
therapies:
A) Kill all cells regardless of cell cycle phase
B) Block signal transduction pathways that initiate cell replication **[CORRECT]**
C) Only work during the M phase of cell division
D) Require cells to be in G₀ phase to be effective
* *Rationale:** Targeted therapies specifically interfere with signal transduction pathways that
promote cell proliferation and survival. Unlike traditional chemotherapy that targets dividing cells
broadly, targeted therapies block specific molecular signals that drive cancer growth.
* *Question 13**
Cyclin-dependent kinases (CDKs) function in the cell cycle by:
A) Initiating apoptosis in damaged cells
B) Controlling entry and progression through cell cycle phases **[CORRECT]**
N
Complete Solution | Graduate Nursing
| Advanced Pathophysiology &
Pharmacology | Pass Guaranteed - A+
Graded
[DOMAIN 1: CANCER BIOLOGY & TUMOR GENETICS - 60 Questions]**
### **Basic Definitions & Characteristics**
* *Question 1**
A nurse is reviewing the pathology report for a patient with a newly diagnosed tumor. The report
describes the tumor as "well-differentiated, encapsulated, and non-invasive." Based on these
characteristics, the nurse should document this tumor as:
A) Malignant with high metastatic potential
B) Benign with localized growth **[CORRECT]**
C) Pre-malignant requiring immediate intervention
D) Metastatic carcinoma with lymph node involvement
* *Rationale:** Benign tumors are characterized by well-differentiated cells that resemble normal
tissue, encapsulated growth patterns that contain the tumor, and lack of invasion into
surrounding tissues. Malignant tumors demonstrate poor differentiation, lack of encapsulation,
and invasive growth with metastatic potential.
* *Question 2**
Which statement best describes the fundamental difference between benign and malignant
tumors?
A) Benign tumors always resolve spontaneously while malignant tumors require treatment
B) Benign tumors are always smaller than malignant tumors
C) Benign tumors lack metastatic capability while malignant tumors can metastasize
**[CORRECT]**
D) Benign tumors only occur in epithelial tissue while malignant tumors occur in connective
tissue
,* *Rationale:** The defining characteristic distinguishing benign from malignant tumors is the
ability to metastasize. While benign tumors may grow large and cause local effects, they cannot
spread to distant sites. Malignant tumors have the capacity for both local invasion and distant
metastasis.
* *Question 3**
A nursing student asks the instructor to explain the term "neoplasia." The most accurate
response is:
A) "It refers specifically to cancerous growth only"
B) "It means 'new growth' and refers to abnormal cell proliferation that may be benign or
malignant" **[CORRECT]**
C) "It describes the process of programmed cell death"
D) "It indicates a viral infection causing cellular transformation"
* *Rationale:** Neoplasia literally means "new growth" and encompasses both benign and
malignant abnormal cellular proliferations. It does not specify cancer specifically, nor does it
refer to apoptosis (programmed cell death) or infectious processes.
* *Question 4**
Which characteristic is shared by both benign and malignant tumors?
A) Ability to metastasize to distant organs
B) Uncontrolled cell proliferation **[CORRECT]**
C) Poor cellular differentiation
D) Invasion of surrounding tissues
* *Rationale:** Both benign and malignant tumors demonstrate uncontrolled cell proliferation.
However, only malignant tumors show poor differentiation, invasion of surrounding tissues, and
metastatic capability. Benign tumors maintain relatively normal cellular appearance and growth
patterns.
* *Question 5**
A patient asks the nurse why their benign lipoma needs to be monitored even though it's "not
cancer." The best response is:
A) "Benign tumors can transform into malignant tumors within 24 hours"
B) "Benign tumors can grow and cause pressure effects on surrounding structures"
**[CORRECT]**
C) "All tumors require chemotherapy regardless of type"
D) "Benign tumors always become malignant eventually"
* *Rationale:** While benign tumors do not metastasize, they can grow progressively larger and
cause symptoms through mass effect, pressure on adjacent structures, or obstruction. This
explains why monitoring or removal may be necessary despite the benign nature.
**Question 6**
, he process of programmed cell death that maintains tissue homeostasis by balancing cell birth
T
with cell death is called:
A) Mitosis
B) Apoptosis **[CORRECT]**
C) Necrosis
D) Carcinogenesis
* *Rationale:** Apoptosis is programmed cell death that eliminates damaged, aged, or
unnecessary cells without inflammation. In normal tissue, apoptosis balances cell proliferation.
Cancer cells evade apoptosis, allowing uncontrolled survival and accumulation.
* *Question 7**
Which statement about apoptosis in cancer is accurate?
A) Cancer cells have accelerated apoptosis compared to normal cells
B) Cancer cells evade apoptosis, allowing continued survival and proliferation **[CORRECT]**
C) Apoptosis is the primary mechanism of cancer cell death during metastasis
D) Apoptosis rates are identical in cancerous and normal tissues
* *Rationale:** A hallmark of cancer is evasion of apoptosis. Cancer cells develop mechanisms
to resist programmed cell death signals, allowing them to survive despite DNA damage and
abnormal growth signals. This contributes to tumor persistence and growth.
* *Question 8**
A tumor is described as "anaplastic." This indicates:
A) The tumor is benign and well-differentiated
B) The tumor shows loss of differentiation and severe cellular atypia **[CORRECT]**
C) The tumor is encapsulated and slow-growing
D) The tumor has metastasized to lymph nodes
* *Rationale:** Anaplasia refers to the loss of cellular differentiation characteristic of malignant
tumors. Anaplastic cells appear primitive, lack normal tissue architecture, and demonstrate
marked pleomorphism. This indicates aggressive malignant behavior.
### **Cell Cycle Phases**
* *Question 9**
A patient receiving chemotherapy asks why treatment is scheduled in cycles. The nurse
explains that chemotherapy is most effective during which phase of the cell cycle?
A) G₀ phase when cells are resting
B) S phase when DNA synthesis occurs
C) M phase when cells are actively dividing **[CORRECT]**
D) G₁ phase when cells are preparing for DNA synthesis
, * *Rationale:** Most chemotherapeutic agents target actively dividing cells during the M (mitosis)
phase when cells are most vulnerable to agents that disrupt DNA replication or cell division.
Cells in G₀ (resting phase) are generally resistant to chemotherapy.
* *Question 10**
Which cell types are commonly found in the G₀ (resting) phase under normal conditions?
A) Skin cells and gastrointestinal epithelium
B) Neurons and cardiac muscle cells **[CORRECT]**
C) Bone marrow cells and hair follicles
D) Oral mucosa and nail beds
* *Rationale:** Neurons and cardiac muscle cells are stable cells that typically remain in G₀
phase and do not divide under normal circumstances. This explains why these tissues are less
susceptible to chemotherapy-induced damage compared to rapidly dividing tissues like skin, GI
epithelium, and bone marrow.
* *Question 11**
During which phase of the cell cycle does DNA replication occur?
A) G₁ phase
B) S phase **[CORRECT]**
C) G₂ phase
D) M phase
* *Rationale:** DNA synthesis (replication) occurs during the S (synthesis) phase. During this
phase, the cell duplicates its DNA content in preparation for mitosis. This is why rapidly dividing
cells (skin, GI tract, bone marrow) are common sites for cancer development.
* *Question 12**
The nurse is educating a patient about targeted cancer therapy. The patient asks how these
drugs work differently from traditional chemotherapy. The nurse should explain that targeted
therapies:
A) Kill all cells regardless of cell cycle phase
B) Block signal transduction pathways that initiate cell replication **[CORRECT]**
C) Only work during the M phase of cell division
D) Require cells to be in G₀ phase to be effective
* *Rationale:** Targeted therapies specifically interfere with signal transduction pathways that
promote cell proliferation and survival. Unlike traditional chemotherapy that targets dividing cells
broadly, targeted therapies block specific molecular signals that drive cancer growth.
* *Question 13**
Cyclin-dependent kinases (CDKs) function in the cell cycle by:
A) Initiating apoptosis in damaged cells
B) Controlling entry and progression through cell cycle phases **[CORRECT]**
