Neoplasia Flashcards
Irreversible (abnormal to ana is irreversible)
Anaplasia
- Loss of differentiation
- Lack normal cellular characteristics
and are nearly always malignant
Proto-oncogenes (proto locks) and ex.
Regulate normal cellular processes such as promoting growth (loss of liver tissue ex.)
Genetic locks that keep cells functioning normally
Tumor suppressor genes (suppress growth)
puts the brakes on cell growth
Exist in normal cells and fx to control cell growth (supress growth)
When genes mutate, normal constraints on cell growth removed
Refer to McCance 12-4, 12-5 for comparison of gene types
Surveillance Network (surveillance kills)
Surveillance Network
Destroys cells before grow into detectable masses
Tumor antigens assist in recognition process
External Risk Factors - (CCRD is external to the office) and ex.
Chemicals - formaldeyhde
Radiation - sunlight
Chronic Irritation - acid reflux, smoking
Dietary Influences - nitrates
internal factors (SIG is internal to me)
Immune Function
Immunosuppressed = increased risk
Surveillance Failure
Genetic Predisposition
Has influence on efficiency of carcinogenic process
Breast CA, Colorectal CA
Nutrition (how many fruits and veggies a day? :)
Nutrition
- Five servings of fruit and vegetables q day
- Limit red meats, processed high fat meats
- Whole grains
Physical Activity (physical for 120 minutes)
Physical Activity
- Engage in at least 150 minutes of moderate intensity or 75 min of vigorous intensity physical activity each week, or equivalent combination
- Children engage in 60 min moderate- vigorous activity each day with vigorous activity at least 3x week.
Regular screening and self examinations could increase 5 yr survival rate to…
82%
If all Ca dx at localized stage through regular screening, 5 yr survival rate could increase to 95%
7 warning signs of cancer (CAUTION) (bowel, throat, bleeding, lump, indigestion, mole. cough)
Change in bladder or bowel habits
A sore throat that does not heal
Unusual bleeding or discharge
Thickening or lump
Indigestion or difficulty swallowing
Obvious change in wart or mole
Nagging cough or hoarseness
diagnostic tests (diagnose my cyte, is it a genetic tumor or bone marrow?)
Cytology studies
Tumor Markers
Genetic Markers
Bone Marrow Exam
classification of cancer - Histologic (study tissue under a microscope) classification
Appearance of cells and degree of differentiation are evaluated to determine how closely cells resemble tissue of origin.
histological grade (how is history looking?)
Evaluation of appearance of cells and degree of differentiation
staging
TNM classification for a 4cm lung cancer with 3 involved lymph nodes and metastasis would be as follows:
T2N2M1(bone).
clinical staging (get situated in staging)
Stage O
Stage I
Stage II
Stage III
Stage IV
surgical therapy
Nursing Considerations
Same as perioperative specific care for organ dysfunction
Nutritional deficits
Risk for Infection
Psychosocial issues (important at Julia’s stage)
radiation therapy
May be used to cure or with other modalities, i.e. Surgery
radiation internal (aka brachytherapy)
Requires less dosage***
Implant place directly in tumor or in close proximity
Will emit radiation when implant in place
radiation safety - limit visiting time to what? And under what age?
Safety Precautions (ALARA: As low as reasonably achievable)
Principles of time, distance, shielding
Limit visitors to 30 min
No children under 16, pregnant women
radiation systemic affects - what areas of the body impacted? (radiation affects my bones, mucus, and skin)
Usually localized to region being irradiated
Affects rapidly proliferating cells
bone marrow
gastrointestinal mucosa
skin
radiation late effects (late radiation scars me and causes other cancers)
May be chronic
Fibrotic changes (thickening or scarring of the tissue)
Increased risk for other malignancies (ex. lymphoma)
radiation nursing considerations
Provide appropriate education
Monitor response to tx
Assure that radiation protection measures are followed
inspection of the skin
chemotherapy - (do not replicate chemo)
The use of various chemical agents that interfere with the replication and other normal functions of cancer cells.
Should result in malignant cell death and tumor shrinkage
chemo risk of (your mom is extravagant)
Risk of Extravasation (occurs with vesicant drugs)
Can cause blistering or tissue necrosis. monitor for signs of redness, necrosis, tenderness.
chemo systemic effects - affects which cells? (just rapid)
Affects cells with rapid growth rates
chemo nursing dx
Cardiac output, decreased
Nutrition, less than body requirements
Infection, risk for
Pain
Fatigue
Body Image, disturbed (hair loss)
chemo nursing interventions - what is the most common cause of death among cancer patients?
Infection: Most frequent cause of morbidity and death in CA pts.
Neutropenic (bones) precautions if indicated
Assess for signs of infection
May need WBC growth factors (i.e Neupogen)
chemo nursing interventions - bleeding
Bleeding (thrombocytopenia)
Soft bristle toothbrush
chemo nursing interventions - nutrition (hard candy, no oj, avoid what?)
Minimize effects of altered taste sensations (ex metallic taste)Ii.e. Hard candies
Mechanical soft, avoid citrus with stomatitis***
Anorexia - small frequent meals, liquid supplements
High calorie, high protein foods: examples? nuts, ensure, yogurt. try to avoid carbs.
chemo nursing interventions - pain (pain based on WHO? And long or short?)
Requires comprehensive assessment
Make appropriate referrals
Use WHO ladder
Preference for long acting, SR preparations
AVOID Injections
chemo nursing interventions cont - Stomatitis (don’t forget saline)
Avoid citrus
Saline rinses
Lidocaine swishes
Rapidly dividing cells of mucous membranes being destroyed
chemo biologic therapy (immune system is biology)
uses body’s own immune system.
Now established as a major category of cancer therapy
Focus is manipulation of immune system through use of naturally occurring biologic substances (cells, cell products) or genetically engineered agents that modify immune response
chemo biologic therapy - May affect host-tumor response in three ways: (biology is direct, to the immune system, and may mess with CA)
Direct antitumor effects
Restore, augment, or modulate host immune system mechanisms
Have other biologic effects, such as interfering with CA cells’ ability to metastasize or differentiate
types of chemo biotherapy - interferon (junkies change metabolism bc they’re nk)
interferon
- Alters cellular metabolism in normal & CA cells
- Inhibits function of several oncogenes
- Can activate NK cells
targeted therapy (tyrone targets clones, angie, and tease)
Tyrosine kinase inhibitors
Monoclonal antibodies
Angiogenesis inhibitors
Proteasome inhibitors
biologic therapy - Hematopoietic Growth Factors (biology is HeMan in a colony with ears)
Hematopoietic Growth Factors
Colony Stimulating Factors
Erythropoietin
should try and get which lymph node? (sentinal node is the best)
sentinal node - just this one because it can identify cancer and you want to get as few lymph nodes as possible d/t lymphodema
during surgery, primary staging is…(primary is TNT - and what it stands for)
TNMdetermine prognosis, treatment, and to report to registry for statistics
T - tumor size
N - lypmph nodes
M - matastesties
dry desquamation
red raw skin from radiation
vancomyicin is a
250 mL dilute, infusion rate is longer due to risk of exstravigation.
nursing interventions
fatigue
body image and self esteem
progressing through the grieving process