[Exam 1] Chapter 15: Management of Patients With Oncologic Disorders Flashcards
What is Anaplasia?
A pattern of growth in which cells lack normal characteristics and differ in shape and organization with respect to their cells of origin
What is carcinogenesis?
Three-step cellular process inolving initiation, promotion and progressions.
Difference between benign and malignant cells?
B: Resemble normal cells of tissue from where tumors from
M: May bear little resembalance ot the normal cells of the tissue where they rose from
BEnign tumor general effects?
Localized phenomenon that does not caused generalized effects, unless affecting vital function
Malignant tumor general effects?
Anemia, WEakness, Systemic Inflammation, Weight Loss, and CACS
Patho of Malignant Process: What occurs during initiation?
Carcinogens like chemicals, physical factors, cause mutations of DNA.
Patho of Malignant Process: What occurs during promotion?
Repeated exposure to co-carcingoens causes proliferation and expansion of initiated cells with increased expression of abnromal genetic information.
Patho of Malignant Process: What occurs during progression?
Cells exhibit malignant behavior.Stimulate angiogenesis (growth of new blood vessels) to invade adjacent tissues and metastasize.
Patho of Malignant Process: Genetic alterations in gene for KRAS associated with?
pancreatic, lung, and colorectal cancers
Proliferative Patterns: What are maligant neoplasms?
They demonstrate uncontrolled cell growth that follows no physiologic demand (neoplasia). These are cancerous cells.
Proliferative Patterns: What viruses are known to cause cancer?
HPV, Hep B, and Epstein-Barr Virus.
Proliferative Patterns - Physical Agents: Physical factors include what
sunlight, radiation, chronic irritation or inflammation, tobacco carcinogens, industrial chemicals and asbestos
Proliferative Patterns - Physical Agents: Exposure to radioactive materials at nuclear weapon manufacturing sites has been associated with higher incidence of what
leukemia, multiple myeloma, and cancers of the lung, bone, breast, thyroid, and other tissues.
Proliferative Patterns - Chemical Agents: Smoking is strongle associated with what types of cancers?
Cancers of the lung, head and neck, esophagus, stomach, pancreas, cervix, kdiney and bladder.
Proliferative Patterns - Genetic Factors: Hallmarks of families with a hereditary cancer syndrome include cancer that involves who
two or more first-degree relatives, onset younger than 50, and same type of cancer with multiple family members.
Proliferative Patterns - Lifestyle Factors: Dietary susbtances that seem to increase RF cancer includes what
fats, alcohol, salt-cured or smoked meats, nitrate, and red and processed meats.
Proliferative Patterns - Hormonal Agents: What can increase the risk of breast cancer
Period before 12, menopause after 55, null parity (never giving birth) and delayed childbirth after 30.
Detection/Prevention of Cancer - Primary: How is this done
Through reducing the risks through health promotion and risk reductions strategies.
Detection/Prevention of Cancer - Primary: Example of this?
Immunization to reduce risk of cancer through prevention of infections associated with cancer.
Detection/Prevention of Cancer - Secondary Prevention: How is this done
Screening and early detection activites that seek to identify precancerous lesions and early-stage cancer in indivduals who lacks S n S of cancer.
Detection/Prevention of Cancer - Tertiary Prevention: How is this done?
Focus on monitoring for and preventing recurrence of the primary cancer as well as screening for the development of second malignancies in cancer surviviors.
What does MEtastasis mean?
Abnormal cells that have an invasive characteristics , infiltrate other tissues
What are malignant cancer cells?
Demonstrate uncontrolled growth that does not follow physiologic demand
How do T-Cell Lymphocytes respond to TAAs?
Release several cytokines that elicit various immune system actions like proliferation and induction of cancer cell apoptosis.
Diagnosis of Cancer: Patients with suspected cancer undergo extensive testing why?
- Determine presence/extent of cancer
- Identify metastasis
- Evaluate function of involved/uninvolved body systems
- Obtain tissue and cells for alaysiss
Tumor Staging/Grading: What does Staging help determine?
Size of tumor, existence of local invasion, lymph node involvement, and distant metastasis.
Tumor Staging/Grading: What is GRading?
Its the pathologic classifcation of tumor cells. Seek to define the type of tissue from which tumor originated and degree to which tumor cells retain the functional characteristics.
Tumor Staging/Grading: Grade I tumors closely resemble what
the tissue or origin in structure and functions.
Anatomic Stage Group: What is this?
It is assignment to facilitate communication, tx decisions, and estimation of prognosis.
What is the TNM classification system?
T: Extent of primary tumor
N: Lymph node involvement
M: Extent of metastasis
Management of Cancer: How is T in TNM graded?
Tx : Tumor cannot be assessed
T0: No evidence of tumor
T1,T2,T3: Tumor increasing in size.
Management of Cancer: How is N in TNM graded?
Nx: Regional lymph nodes cannot be assessed
N0: No regional lymph nodde metastasis
N1,N2,N3: Increasing involvement of lymph ndoes
Management of Cancer: How is M in TNM graded?
Mx = cannot be assessed M0 = No distan metastasis M1 = distant metastasis
Management of Cancer: What type of treatment goals are there?
Complete eradication of maligant disease (cure), prolonged survival, and containment of canceer cell growth (control) or relief of symptoms (palliation)
Management of Cancer - Surgery: What is Diagnostic surgery?
Definitive method for obtaining tissue to identify characteristics.
Management of Cancer - Surgery: What can be done to identify the sentinel lymph node or initial lymph node where primary tumor and surrounding tissue drain?
By use of injectable dye and nuclear medicine imaging
Management of Cancer - Surgery: What is Sentinel Lymph Node Biopsy (SLNB)?
Minimally invasive surigal approach, adopted for regional lymph node staging.
Management of Cancer - Surgery and Biopsy Types: Biopsy methods incldue what
Excisional, Incisional, and Needle BIopsy
Management of Cancer - Surgery and Biopsy Types: Why is Excisional Biopsy used?
For small, easily accessible tumors of the skin, upper/lower GI and upper respiraotry tracts. Can remove entire tumor here.
Management of Cancer - Surgery and Biopsy Types: When is Incisional Biopsy performed?
If the tumor mass is too large to be r emoved. Wedge of tissue form tumor is removed for analyssi.
Management of Cancer - Surgery and Biopsy Types: How are Excisional and Incisional approaches performed?
Through endoscopy.
Management of Cancer - Surgery and Biopsy Types: When is Needle Biopsy performed?
To sample suspicious masses that are easily and safely accecssible, like in the breasts, thyroid, lung, liver, and kidney.
Management of Cancer - Surgery and Biopsy Types: What does Fine-Needle Aspiration biopsy involve?
Aspirating cells rather than intact tissue through a needle that is guided to suspected diseased area.
Management of Cancer - Surgery As Primary Tx; What is the goal of this?
To remove entire tumor or as much as feasible (debulking)
Management of Cancer - Surgery As Primary Tx; Two common approaches for this?
Local and wide excisions. Local is in outpatient when mass small. Wide involves removal of primary tumor, lymph nodes, adjacent invovles structure and surounding tissues.
Management of Cancer - Surgery As Primary Tx; Minimally invasive techniques are becomng popular, why?
Minimization of surgical trauma, decreased blood loss, decrease incidence of wound infection, and decreased surgiical time.
Management of Cancer - Surgery As Primary Tx; How does Video-Assisted Endoscopic Surgery work?
Endoscope with intense lighting and attached multichip mini-camera is inserted through small incision. Used for thoracic and abdominal.
Management of Cancer - Surgery As Primary Tx; What is salvage surgery?
Uses an extensive surgical approach to treat the local recurrence of cancer after the use of a less extensive primary approach. Example is Mastectomy.
Selected TEcniques for Localized Destruction of Tumor Tissue: What is Cryoablation?
Use of liquid nitrogen or a very cold probe to freeze tissue and cause cell destruction
Selected TEcniques for Localized Destruction of Tumor Tissue: What is Photodynamic Therapy?
IV admin of light-sensitizing agent that is taken up by cancer cells, followed bye xposure to laser light within 24-48 hours.
Mx of Cancer - Prophylactic Surgery: What does this involve?
Removing non-vital tissues or organs that are at increased risk of developing cancer. Can be because of family hx, or presence of signs and symptoms .
Mx of Cancer - Prophylactic Surgery: Examples of this?
Colectomy, mastectomy, and oophorectomy.
Mx of Cancer - Palliative Surgery: Goal of this?
To relieve symptoms when sure not possible, and to make the patient as comfortable as possible.
Mx of Cancer - Nursing Mx: Postoperative, nurse assess for potential complications such as?
infection, bleeding, thrombophlebitis, wound dehisence, fluid and electrolyte imbalance and organ dysfunction
Mx of Cancer - Nursing Mx: Postoperative education addresses what?
wound care, pain management, activity, nutrition, and medication information
Mx of Cancer - Radiation Therapy: Why may this be given prophylactically?
To prevent local recurrence or spread of microscopic cells from primary tumor to distant area
Mx of Cancer - Radiation Therapy: Why may palliative radiation therapy be used?
To relieve symptoms of locally advanced or metastatic disease.
Mx of Cancer - Radiation Therapy: What types of ionizing radiation can be used to kill cells?
Electromagnetic radiation (xrays and gamma) and particulate radiation (electrons, beta, protons, neurtons)
Mx of Cancer - Radiation Therapy: What does ionizing radiation do to cells?
Breaks the strands of DNA helix, leading ot cell death.
Mx of Cancer - Radiation Therapy: What parts of body are most sensitive to radiation therapy?
Bone marow, lymphatic tissue, epithelium of GI tract, hair follicles, and gonads.
Mx of Cancer - Radiation Therapy: What is a radiosenstiive tumor?
One that can be destroyed by a dose of radiation that still allows for cell repair and regeneration in the surrounding normal tissue.
Mx of Cancer - Radiation Dosage: This depends on what?
Sensitivity of the target tissues to radiation, size of tumor, radiation tolerance and critical structures adjancet to tumor target.
Mx of Cancer - Radiation Dosage: Lethal tumor dose defined as what
dose that will erradicate 95% of the tumor, yet preserve normal tissue.
Mx of Cancer - Radiation Dosage: How does external-beam radiation therapy (EBRT) work?
Total radiaiton dose is delivred over several weeks in daily doses called fractions. Allows healthy tissue to repair.
Mx of Cancer - Admin of Radiation: What different ways can this be given
EBRT, Brachytherapy (form of internal radiation), systemic (radioisotopes) and contact or surface molds
Mx of Cancer - Admin of Radiation, External Radiation: Most commonly used form of radiation therapy?
EBRT
Mx of Cancer - Admin of Radiation, External Radiation: What are volumetric images?
CT, MRI, PET scans used to provide 3D images of tumor, neighboring tissues at risk for spread, and surrounding normal tissue. Allow oncologist to plan for multiple radiaiton beams at different angles.
Mx of Cancer - Admin of Radiation, External Radiation: Radiation dose with ERBT?
Is reduced, leading to less toxicity. ALlows ability to control different intensity or energy levels at different angles (intesnsity modulated radiation therapy IMRT)
Mx of Cancer - Admin of Radiation, External Radiation: How can IMRT be given?
As standard daily fractions or hyperfractionated twice-daily fractions, which shortens duration of pts treatment schedule.
Mx of Cancer - Admin of Radiation, External Radiation: How deos Image-guided radiation therapy work?
Uses continuous monitoring of the tumor with ultrasound, x-ray, or CT scan to spare the healthy surrounding tissue and reduce side effects.
Mx of Cancer - Admin of Radiation, External Radiation: What is Stereotactic Body Radiotherapy (Another type of ERBT)
It uses higher doses of radiation to penetrate very deeply into the body to control deep-seated tumors that cannot be treated by other approaches such as surgery.
Mx of Cancer - Admin of Radiation, External Radiation: How is Stereeotactic Body Radiotherapy performed?
With higher tx frction doses over a short spain of time (1-5 tx days).
Mx of Cancer - Admin of Radiation, External Radiation: How does Proton Therapy work?
utilizes high linear energy transfer (LET) in the form of charged protons. Capable of delivering high-energy dose to a deep-seated tumor, with decreased doses of radiation to tissues in front of tumor.
Mx of Cancer - Admin of Radiation, Internal Radiation: What doe sthis include?
Localized implantation or systemic radionuclide administration.
Mx of Cancer - Admin of Radiation, Internal Radiation and Brachytherapy: What is this?
Placement of radioactive sources within or immediately next to cancer site in order to provide highly targeted, intense dose of radiation beyond a dose usually provided by EBRT
Mx of Cancer - Admin of Radiation, Internal Radiation and Brachytherapy: Primary advantage of high-dose radiation brachytherapy?
Treatment time is shorted, there is reduced exposure to personnel, and procedure can be perofrmed on an outpatient basis over several days.
Mx of Cancer - Admin of Radiation, Internal Radiation and Systemic Radiotherapy: How does this work?
Involves use of IV administration of a therapeutic radioactive isotope targeted to a specific tumor. THis includes cancers of the thyroid.
Mx of Cancer - Toxicity: When can this occur?
Acute or early toxicites most often begin within 2 wweeks of treatment.
Mx of Cancer - Toxicity: What body systems are most likely affected by this?
Skin, epithelial lining of GI tract, and bone marrow
Mx of Cancer - Toxicity: Alterations in oral mucosa secondary to radiation therapy in head and neck region include what
stomatitis (inflammation of oral tisue)), decreases alivation, xerostomia (Dryness of mouth) and change in taste.
Mx of Cancer - Toxicity: What systemic side effects are experienced by patients receiving radiation therapy?
Fatigue, malaise, anorexia. Subside within 6 months of cessation of treatment.
Mx of Cancer - Toxicity: Late effects (6 months ot years afters treatmetn ) of radiation therapy include what?
Permanent damage to tissues, loss of elasticity, and changes to decreased vascular supply. Includes fibrosis, atrophy, ulceration, and necrosis.
Mx of Cancer - Toxicity: What does nurse assess with someone receiving EBRT?
Patients skin regularly throughout course of treatment.
Mx of Cancer - Protecting Caregivers: What precautions must be done for someone recieving internal radiation?
Contact with care team in guided by principles of time, distance, and shielding to minimize exposure of personnel to raiation.
Mx of Cancer - Protecting Caregivers: What precuations may be taken for someone recieving internal radiation?
Private room, have staff where dosimeter badges, no pregnant staff, and limiting visits to 30 mins.
Chemotherapy: What is this
use of antineoplastic drugs that attempt to destroy cancer cells by interfering with cellular functions, including replication and DNA repair. USed to treatment systemic disease rather than localized lesions.
Cell Kill and Cell Cycle: What is the goal of treatment when it comes to killing cells?
Eradication of enough of the tumor so that the remaining maligant cells can be destroyed by the bodys immune system
Cell Kill and Cell Cycle: What are the four distinct phases of cell cycl?
G1: RNA and PRotein Synthesis
S Phase: DNA Synthesis
G2: Premiotic phase, DNA synthesisi complete
Mitosis: Duplicated chromosomes separate, division occurs
Cell Kill and Cell Cycle, Clasification of Chemotherapeutic Agents: What are cell cycle-specific agents?
Agents that exert their maximal effect during specific phases of the cell cycle. Destroy cells that are actively reproducing, the S phase.
Cell Kill and Cell Cycle, Clasification of Chemotherapeutic Agents: What stage do plant alkaloids alter?
M Phase, where they half mitotic spindle formation
Cell Kill and Cell Cycle, Clasification of Chemotherapeutic Agents: What are cell cycle-nonspecific agents?
Chemotherapeutic agents that act independently of the cell cycle phases. HAve prologned effect on cells, leading to cell damage/death
Cell Kill and Cell Cycle, Admin of Chemotherapeutic Agents, Dosage: Dosage is based on what
patients total BSA, weight, previous exposure, and response to chemotherapy or radiation therapy.
Cell Kill and Cell Cycle, Admin of Chemotherapeutic Agents, Extravasation: Why can this happen?
When tissue can be damaged if chemotherapy agents inadvertently leak from a vein into surrounding tissue (extravasation).
Cell Kill and Cell Cycle, Admin of Chemotherapeutic Agents, Extravasation: What are Vesicants?
Agents that is deposited into SQ or surrounding tissues, cause inflammation, tissue damage, and possibly necrosis of tendons, muscles, nerves, and blood vessels.
Cell Kill and Cell Cycle, Admin of Chemotherapeutic Agents, Extravasation: Vesicant chemotherapy should never be given where
in the peripheral veins involving the hands or wrist. Permitted for short duration only.
Cell Kill and Cell Cycle, Admin of Chemotherapeutic Agents, Extravasation: What should be used for frequent or prolonged administration of antineoplastic vesicants?
Right atrial silastic catheters, implanted venous access devices, or peripheraly insesrted central catheters (PICCs)