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NSB236 EXAM Questions and
Correct Answers the Latest Update
What is the biology of cancer?
✓ Defective cell proliferation and defective cell differentiation.
What are the three stages of cancer development?
✓ Initiation, promotion and progression.
What are the characteristics of benign neoplasms?
✓ Usually encapsulated, normally differentiated, nil metastases, rare recurrence, slight
vascularity, and expansive growth.
What are the characteristics of malignant neoplasms?
✓ Rarely encapsulated, poorly differentiated, capable of metastasis, possible recurrence,
moderate to marked vascularity, and infiltrative growth.
What is the aim of chemotherapy?
✓ To reduce or eliminate malignant cells.
What is dysplasia?
✓ The presence of abnormal cells within a tissue.
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How is cancer growth staged?
✓ From stage 0 (cells are in situ) to stage 4 (cells have metastasised).
What are the four stages of radiation therapy?
✓ Energy beams absorb into tissue, ionisation occurs, leading to the breakdown of cell
DNA bonds.
What are the side effects of chemotherapy?
✓ Nausea and vomiting, malnutrition, inflammation, diarrhoea/constipation and
toxicities.
What is angiogenesis?
✓ The formation of new blood vessels.
What are the meninges?
✓ The three layers of membranes that protect the brain and spinal cord.
What is anaplasia?
✓ The lack of cellular differentiation.
What is an oncogene?
✓ A mutated gene that has the potential to cause cancer.
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What is a vesicant?
✓ An agent that causes blistering.
What is nadir?
✓ The lowest possible blood cell count during chemotherapy.
What is a neoplasm?
✓ A new and abnormal growth of tissue.
What is leucopenia?
✓ An abnormally low white blood cell count.
What is thrombocytopenia?
✓ A low level of platelets in the blood.
What is the normal range of leukocytes in the blood?
✓ 4,500-11,000.
What is the normal range of thrombocytes in the blood?
✓ 150,000-450,000 per micro-litre.
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