Which term best describes cancer?
dysplasia
neoplasia
metaplasia
hyperplasia
The Correct Answer is B
A. dysplasia: Dysplasia is disordered, atypical cellular growth and may be a precursor to cancer, but it is not the term that best defines established cancer.
B. neoplasia: Neoplasia (new, uncontrolled cell growth) is the term that best describes tumors/cancer (malignant neoplasms).
C. metaplasia: Metaplasia is reversible replacement of one cell type by another and is not synonymous with cancer.
D. hyperplasia: Hyperplasia is increased cell number (often a regulated response) and can be benign or a step toward neoplasia, but it does not itself define cancer.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. a bacterial infection: This is an infectious process, not the definition of iatrogenic.
B. being related to treatment received: Iatrogenic means caused by medical examination or treatment (adverse drug reaction, procedure complication, etc.).
C. hospital acquired: Hospital-acquired (nosocomial) infections occur in healthcare settings and may be iatrogenic but are not synonymous-iatrogenic specifically implicates medical intervention.
D. predisposing factors: Predisposing factors make disease more likely but are not the definition of iatrogenic.
Correct Answer is B
Explanation
A. NK cells: Natural killer cells are innate immune effectors that kill infected or transformed cells - they are not the primary mediators of humoral (antibody) immunity.
B. T cells: T cells mediate cell-mediated immunity (cytotoxic and helper roles); helper T cells support humoral responses but they are not the direct humoral mediators.
C. B cells: B lymphocytes differentiate into plasma cells that produce antibodies - humoral immunity is mediated by B cells/antibodies.
D. Macrophages: Macrophages are phagocytes and antigen-presenting cells of innate/adaptive immunity, not the main mediators of humoral antibody production.
E. Neutrophils: Neutrophils are innate phagocytic cells involved in acute inflammation, not humoral antibody production.
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