Oncology & End-Of-Life Flashcards
What are the different ways cancer can metastasize?
KNOW THIS!!!…per Hayley
Lymphatic
Hematogenous (blood)
Angiogenesis
What is angiogenesis?
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Growth of new vessels
- Advanced cancers secrete angiogenic factors to facilitate feeding of the tumor
What percentage of breast cancers are HER2 positive?
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30%
What medicaiton is given to treat HER2+ breast cancers?
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Herceptin
List common carcinogenic agents & factors that increase an individual’s risk of developing cancer.
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- Genetics
- Diet
- Hormones
- Smoking
- Chronic Inflammation (individuals who are immunosuppressed like in Crohns)
What are tumor markers?
Proteins made at higher amounts in cancerous cells than in normal (benign) cells
- antigens expressed on cell surface or relased from normal cells in response ot tumors
- Helpful for surveillance & diagnosis of cancer
Tumor Classifications & Nomenclature (explain each of the following):
- Benign Tumors
- Malignant Tumors
- Lipoma
- Leiomyoma
- Carcinoma
- Adenocarcinoma
- Sarcoma
- Lymphoma
- Leukemia
- Benign Tumors: non-cancerous
- Malignant Tumors: cancerous tumors
- Lipoma: fat
- Leiomyoma: smooth muscle
- Carcinoma: epithelial tumors (malignant)
- Adenocarcinoma: ducts or glands
- Sarcomas: malignant connective tissue tumors
- Lymphomas: lymphatic tissue tumors
- Leukemias: cancer in blood-forming cells
Hwo should the nurse reply whena parent questions why a computed tomographic (CT) can of the head was not ordered for their 5-year-old child after a minor fall?
a.) Physicians are cautious about ordering CT scans on children younger than 10 years of age
b.) CT scans are seldom conclusive when used to diagnose head injuries in young children
c.) The child’s symptoms will determine whether a CT scan is necessary and whether it is worth the espense
d.) Research suggests that repeated CT scans can increase the risk of developing brain cancer
d.) Research suggests that repeated CT scans can incrase the risk of brain cancer
Forms of Primary Prevention for Cancer
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- Avoid known carcinogens (tobacco)
- Lifestyle & Dietary changes
- Physical activity
- Weight control (obesity is linked to uterus, prostate, breast, gallbladder, & colon cancer)
- Alcohol limitations
- Sun avoidance
- Vaccinations (HPV)
- Public & patient education
Forms of Secondary Prevention for Cancer
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- Identification of patients at high risk for cancer
- Cancer screening (mammography, breast self exam, self-testicular exam, colonoscopy, pap smear, etc.)
- Public & patient education
- Measuring tumor markers
Explain the TNM Classification
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TUMOR (T):
* Tx = cannot be adequately assessed
* T0 = no evidence of primary tumor
* Tis = carcinoma in situ
* T1 - T4 = progressive increase in tumor size
NODES (N):
* N0 = no evidence of regional node metastasis
* N1 - N3 = increasing involvement of regional lymph nodes
METASTASIS (M):
* M0 = no distant metastasis
* M1 = distant metastasis
What are the tumor (T) stages for TNM classification?
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- Tx = cannot be adequately assessed
- T0 = no evidence of primary tumor
- Tis = carcinoma in situ
- T1 - T4 = progressive increase in tumor size
What are the node (N) stages for TNM classification?
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- N0 = no evidence of regional node metastasis
- N1 - N3 = increasing involvement of regional lymph nodes
What are the metastasis (M) stages for TNM classification?
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- M0 = no distant metastasis
- M1 = distant metastasis present
What is a mediport?
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implanted vascular device
- Used for infusion of chemotherapy
- Usually placed in subclavian or external jugular vein
If meeting resistance when accessing port a small amount of tpa can be administered to break up any clots