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patho 1 Test sobre Ch. 12 cancer bio, creado por Esmeralda Espitia el 01/02/2022.

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Ch. 12 cancer bio

Pregunta 1 de 42

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1. Which cancer originates from connective tissue?

Selecciona una de las siguientes respuestas posibles:

  • a. Osteogenic sarcoma

  • b. Basal cell carcinoma

  • c. Multiple myeloma

  • d. Adenocarcinoma

Explicación

Pregunta 2 de 42

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2. Carcinoma refers to abnormal cell proliferation originating from which tissue origin?

Selecciona una de las siguientes respuestas posibles:

  • a. Blood vessels

  • b. Epithelial cells

  • c. Connective tissue

  • Glandular

Explicación

Pregunta 3 de 42

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3. Carcinoma in situ is characterized by which changes?

Selecciona una de las siguientes respuestas posibles:

  • a. Cells have broken through the local basement membrane.

  • b. Cells have invaded immediate surrounding tissue.

  • c. Cells remain localized in the glandular or squamous cells.

  • d. Cellular and tissue alterations indicate dysplasia.

Explicación

Pregunta 4 de 42

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4. Which term is used to describe a cell showing a loss of cellular differentiation?

Selecciona una de las siguientes respuestas posibles:

  • a. Dysplasia

  • b. Hyperplasia

  • c. Metaplasia

  • d. Anaplasia

Explicación

Pregunta 5 de 42

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5. What are tumor cell markers?

Selecciona una de las siguientes respuestas posibles:

  • a. Hormones, enzymes, antigens, and antibodies that are produced by cancer cells

  • b. Receptor sites on tumor cells that can be identified and marked

  • c. Cytokines that are produced against cancer cells

  • d. Identification marks that are used in administering radiation therapy

Explicación

Pregunta 6 de 42

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6. What is one function of the tumor cell marker?

Selecciona una de las siguientes respuestas posibles:

  • a. To provide a definitive diagnosis of cancer

  • b. To treat certain types of cancer

  • c. To predict where cancers will develop

  • d. To screen individuals at high risk for cancer

Explicación

Pregunta 7 de 42

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7. Which statement supports the hypothesis that intestinal polyps are benign neoplasms and the first stage in the development of colon cancer?

Selecciona una de las siguientes respuestas posibles:

  • a. Cancer cells accumulate slower than noncancer cells.

  • b. An accumulation of mutations in specific genes is required to develop cancer.

  • c. Tumor invasion and metastasis progress more slowly in the gastrointestinal tract.

  • d. Apoptosis is triggered by diverse stimuli, including excessive growth.

Explicación

Pregunta 8 de 42

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8. Autocrine stimulation is the ability of cancer cells to do what?

Selecciona una de las siguientes respuestas posibles:

  • a. Stimulate angiogenesis to create their own blood supply

  • b. Encourage secretions that turn off normal growth inhibitors

  • c. Secrete growth factors that stimulate their own growth

  • d. Divert nutrients away from normal tissue for their own use

Explicación

Pregunta 9 de 42

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9. What is apoptosis?

Selecciona una de las siguientes respuestas posibles:

  • a. Normal mechanism for cells to self-destruct when growth is excessive

  • b. Antigrowth signal activated by the tumor-suppressor gene Rb

  • c. Mutation of cell growth stimulated by the TP53 gene

  • d. Transformation of cells from dysplasia to anaplasia

Explicación

Pregunta 10 de 42

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10. A student studying biology asks the professor to describe how the ras gene is involved in cancer proliferation. What explanation by the professor is best?

Selecciona una de las siguientes respuestas posibles:

  • a. It suppresses the action of the tumor-suppressor genes.

  • b. It changes the way the growth promotion genes work.

  • c. A mutation in this gene allows continuous cell growth.

  • d. It activates a cell surface receptor that allows signaling to the nucleus.

Explicación

Pregunta 11 de 42

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11. The professor explains to students that oncogenes are genes that are capable of what?

Selecciona una de las siguientes respuestas posibles:

  • a. Undergoing mutation that directs the synthesis of proteins to accelerate the rate of tissue proliferation

  • b. Directing synthesis of proteins to regulate growth and to provide necessary
    replacement of tissue

  • c. Encoding proteins that negatively regulate the synthesis of proteins to slow or halt
    the replacement of tissue

  • d. Undergoing mutation that directs malignant tissue toward blood vessels and lymph
    nodes for metastasis

Explicación

Pregunta 12 de 42

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12. Burkitt lymphomas designate a chromosome that has a piece of chromosome 8 fused to a piece of chromosome 14. This is an example of which mutation of normal genes to oncogenes?

Selecciona una de las siguientes respuestas posibles:

  • a. Point mutation

  • b. Chromosome translocation

  • c. Gene amplification

  • d. Chromosome fusion

Explicación

Pregunta 13 de 42

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13. In childhood neuroblastoma, the N-myc oncogene undergoes which type of mutation of normal gene to oncogene?

Selecciona una de las siguientes respuestas posibles:

  • a. Point mutation

  • b. Chromosome fusion

  • c. Gene amplification

  • d. Chromosome translocation

Explicación

Pregunta 14 de 42

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14. What aberrant change causes the abnormal growth in retinoblastoma?

Selecciona una de las siguientes respuestas posibles:

  • a. Proto-oncogenes are changed to oncogenes.

  • b. The tumor-suppressor gene is turned off.

  • c. Genetic amplification causes the growth.

  • d. Chromosomes 9 and 21 are fused.

Explicación

Pregunta 15 de 42

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15. Why are two “hits” required to inactivate tumor-suppressor genes?

Selecciona una de las siguientes respuestas posibles:

  • a. Each allele must be altered, and each person has two copies, or alleles, of each
    gene, one from each parent.

  • b. The first hit stops tissue growth, and the second hit is needed to cause abnormal
    tissue growth.

  • c. Tumor-suppressor genes are larger than proto-oncogenes, requiring two hits to
    affect carcinogenesis.

  • d. The first hit is insufficient to cause enough damage to cause a mutation.

Explicación

Pregunta 16 de 42

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16. How does the ras gene convert from a proto-oncogene to an oncogene?

Selecciona una de las siguientes respuestas posibles:

  • a. Designating a chromosome that has a piece of one chromosome fused to a piece of
    another chromosome

  • b. Duplicating a small piece of a chromosome, repeatedly making numerous copies

  • c. Altering one or more nucleotide base pairs

  • d. Promoting proliferation of growth signals by impairing tumor-suppressor genes

Explicación

Pregunta 17 de 42

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17. How do cancer cells use the enzyme telomerase?

Selecciona una de las siguientes respuestas posibles:

  • a. To repair the telomeres to restore somatic cell growth

  • b. As an intracellular signaling chemical to stimulate cell division

  • c. To switch off the telomerase to enable cells to divide indefinitely

  • d. To switch on the telomerase to enable cells to divide indefinitely

Explicación

Pregunta 18 de 42

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18. What are characteristics of benign tumors?

Selecciona una de las siguientes respuestas posibles:

  • a. Benign tumors invade local tissues.

  • b. Benign tumors spread through the lymph nodes.

  • c. Benign tumors cause systemic symptoms.

  • d. Benign tumors include the suffix -oma.

Explicación

Pregunta 19 de 42

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19. What is the major virus involved in the development of cervical cancer?

Selecciona una de las siguientes respuestas posibles:

  • a. Herpes simplex virus type 6

  • b. Herpes simplex virus type 2

  • c. Human papillomavirus

  • d. Human immunodeficiency virus

Explicación

Pregunta 20 de 42

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20. The Papanicolaou (Pap) test is used to screen for which cancer?

Selecciona una de las siguientes respuestas posibles:

  • a. Ovarian

  • b. Uterine

  • c. Cervical

  • d. Vaginal

Explicación

Pregunta 21 de 42

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21. A healthcare professional is caring for a patient undergoing chemotherapy. What is the skin- related health risk the professional should assess the patient for and be prepared to treat?

Selecciona una de las siguientes respuestas posibles:

  • a. Infection

  • b. Ultraviolet damage

  • c. Pain

  • d. Erythema

Explicación

Pregunta 22 de 42

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22. Inherited mutations that predispose to cancer are almost invariably what kind of gene?

Selecciona una de las siguientes respuestas posibles:

  • a. Proto-oncogenes

  • b. Oncogenes

  • c. Tumor-suppressor genes

  • d. Growth-promoting genes

Explicación

Pregunta 23 de 42

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23. What is the consequence for cells when the functioning TP53 gene is lost as a result of mutation?

Selecciona una de las siguientes respuestas posibles:

  • a. Cells undergo apoptosis.

  • b. Cells escape apoptosis.

  • c. Cells receive less oxygen.

  • d. Cells adhere more readily.

Explicación

Pregunta 24 de 42

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24. Which gastrointestinal tract condition can be an outcome of both chemotherapy and radiation therapy?

Selecciona una de las siguientes respuestas posibles:

  • a. Increased cell turnover

  • b. Constipation

  • c. Stomatitis

  • d. Bloody stool

Explicación

Pregunta 25 de 42

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25. What is the role of vascular endothelial growth factor (VEGF) and basic fibroblast growth factor (bFGF) in cell metastasis?

Selecciona una de las siguientes respuestas posibles:

  • a. To stimulate growth of nearby tumor cells

  • b. To develop new blood vessels to feed cancer cells

  • c. To prevent cancer cells from escaping apoptosis

  • d. To act as a chemical gradient to guide cells to blood vessels

Explicación

Pregunta 26 de 42

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26. It has been determined that a patient’s tumor is in stage 2. How does the healthcare professional describe this finding to the patient

Selecciona una de las siguientes respuestas posibles:

  • a. Cancer is confined to the organ of origin.

  • b. Cancer has spread to regional structures.

  • c. Cancer is locally invasive.

  • d. Cancer has spread to distant sites.

Explicación

Pregunta 27 de 42

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27. A cancer patient has pain at the tumor site and is worried the tumor has metastasized. What does the healthcare provider understand about this patient’s complaint?

Selecciona una de las siguientes respuestas posibles:

  • a. Pain is primarily a result of pressure caused by the tumor.

  • b. Pain indicates the metastasis of a cancer.

  • c. Pain is usually the initial symptom of cancer.

  • d. Pain is generally associated with late-stage cancer.

Explicación

Pregunta 28 de 42

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28. A healthcare professional is caring for four patients with cancer. Which patient does the professional educate about brachytherapy?

Selecciona una de las siguientes respuestas posibles:

  • a. Lung

  • b. Colon

  • c. Cervical

  • d. Brain

Explicación

Pregunta 29 de 42

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29. A child has been diagnosed with acute lymphoblastic leukemia (ALL). What does the healthcare professional tell the parents about the survival rate at 5 years for this disease

Selecciona una de las siguientes respuestas posibles:

  • a. 90%

  • b. 70%

  • c. 40%

  • d. 20%

Explicación

Pregunta 30 de 42

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30. By what process do cancer cells multiply in the absence of external growth signals?

Selecciona una de las siguientes respuestas posibles:

  • a. Proto-oncogene

  • b. Autocrine stimulation

  • c. Reliance on caretaker genes

  • d. Pleomorphology

Explicación

Pregunta 31 de 42

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31. What is the role of caretaker genes?

Selecciona una de las siguientes respuestas posibles:

  • a. Maintenance of genomic integrity

  • b. Proliferation of cancer cells

  • c. Secretion of growth factors

  • d. Restoration of normal tissue structure

Explicación

Pregunta 32 de 42

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32. In a normal, nonmutant state, what is an oncogene referred to as?

Selecciona una de las siguientes respuestas posibles:

  • a. Basal cell

  • b. Target cell

  • c. Caretaker gene

  • d. Proto-oncogene

Explicación

Pregunta 33 de 42

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33. What does the student learn about pleomorphic cells?

Selecciona una de las siguientes respuestas posibles:

  • a. Pleomorphic cells are similar in size.

  • b. They have different sizes and shapes.

  • c. They are a result of anaplasia.

  • d. Pleomorphic cells differentiate uniformly.

Explicación

Pregunta 34 de 42

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34. What is the most commonly reported symptom of cancer treatment?

Selecciona una de las siguientes respuestas posibles:

  • a. Nausea

  • b. Fatigue

  • c. Hair loss

  • d. Weight loss

Explicación

Pregunta 35 de 42

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35. What does the health professions student learn about benign tumors?

Selecciona una de las siguientes respuestas posibles:

  • a. The resulting pain is severe.

  • b. Benign tumors are not encapsulated.

  • c. Benign tumors are fast growing.

  • d. The cells are well-differentiated.

Explicación

Pregunta 36 de 42

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1. Normally, which cells are considered immortal? (Select all that apply.)

Selecciona una o más de las siguientes respuestas posibles:

  • a. Germ

  • b. Stem

  • c. Blood

  • d. Epithelial

  • e. Muscle

Explicación

Pregunta 37 de 42

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2. What is the most common route for distant metastasis? (Select all that apply.)

Selecciona una o más de las siguientes respuestas posibles:

  • a. Seeding

  • b. Blood

  • c. Lymphatic vessels

  • d. Invasion

  • e. Proliferation

Explicación

Pregunta 38 de 42

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3. What cellular characteristics are affected by anaplasia? (Select all that apply)

Selecciona una o más de las siguientes respuestas posibles:

  • a. Size

  • b. Ability to differentiate

  • c. Life expectancy

  • d. Tissue structure

  • e. Shape

Explicación

Pregunta 39 de 42

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4. What are the most common causes of nosocomial infections among patients with cancer? (Select all that apply.)

Selecciona una o más de las siguientes respuestas posibles:

  • a. Indwelling medical devices

  • b. Suppressed immune system

  • c. Visitor-introduced microorganisms

  • d. Poor appetite

  • e. Inadequate wound care

Explicación

Pregunta 40 de 42

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5. Which statements concerning aging and the occurrence of cancer are true? (Select all that apply.)

Selecciona una o más de las siguientes respuestas posibles:

  • a. Decline in immunologic functions

  • b. Predisposition to nutritional inadequacies

  • c. Unwillingness to access healthcare services

  • d. Reluctance to engage in cancer screenings

  • e. Effects of immobility on the immune system

Explicación

Pregunta 41 de 42

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6. Which cancers are associated with chronic inflammation? (Select all that apply.)

Selecciona una o más de las siguientes respuestas posibles:

  • a. Brain

  • b. Colon

  • Bone

  • d. Thyroid gland

  • e. Urinary bladder

Explicación

Pregunta 42 de 42

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7. A healthcare professional is assessing a patient who has cancer and a hemoglobin of 8.8 mg/dL. What factors should the professional assess the patient for?

Selecciona una o más de las siguientes respuestas posibles:

  • a. Chronic bleeding

  • b. Malabsorption of iron

  • c. Malnutrition

  • d. Recent blood transfusion

  • e. Current infection

Explicación