Anticancer Drugs Flashcards
Types of Cancer
Genetic and environmental/diet
Genetic Cancers
Breast, ovarian, prostate, endometrial/ovarian, colon, pancreatic, lung, malignant melanoma
Environmental/diet Cancers
Lung (tobacco/asbestos, arsenic), liver (Hep B+C, aflatoxin), AML (Benzene), sarcoma (vinyl chloride), colon/rectal (animal fat), stomach (smoked meats), mouth/throat/esophagus (ETOH)
Types of Anticancer Drugs
Cell cycle-nonspecific (CCNS) and cell cycle-specific (CCS)
Cell Cycle-nonspecific (CCNS)
Act during any phase of the cell cycle
Alkylating drugs
Anti-tumor antibiotics
Hormones
Cell Cycle-specific (CCS)
Act during a specific phase/phases
Effective for rapidly growing cancer cells
Anti-metabolites
Miotic inhibitors
General Sxs of Anticancer Drugs
Immunocompromised, N/V/D, loss of appetite, fatigue, low platelet count, low blood count, elevated BUN, elevated creatinine, alopecia, HA, dizziness, dermatitis
All Anticancer Drugs Are What Pregnancy Category?
Pregnancy category D
Most Anticancer Onset Times?
Between 7-10 days
General Adverse Reactions of Anticancer Drugs
Secondary neoplasm, bone marrow depression, anemia, reactivation of dormant viruses, cardiac dysrhythmias, HF
General Life-threatening Reactions of Anticancer Drugs
Leukopenia, thrombocytopenia, severe myelosuppression, anaphylaxis
General Contraindications of Anticancer Drugs
Hypersensitivity, severe bone marrow depression. pregnancy, liver or kidney disease, severe HF?, may increase INR, smoking?, dehydration
General Drug Interactions of Anticancer Drugs
Increase action of barbituates, chloramphenicol, AC
Bone marrow depressants increase toxicity
Avoid live virus vaccines
Thiasized diuretics may increase myelosuppression
Reduces effectiveness of vaccines
General Nursing Considerations of Anticancer Drugs
Assess CBC, plts (may hold med if levels are too low)
Handle drug with care (avoid direct contact with skin, eyes, mucous)
Monitor IV site frequently for irritation and phlebitis
Administer anti-emetic 30-60 minutes before giving drug
Hydrate pt with IV and oral fluids prior to administration
Monitor BUN and creatinine
Strict asepsis techniques during dressing changes or invasive procedures
Maintain good hygiene
Consult with oncologist before getting vaccines
Testicular atrophy and reversible oligospermia/azoospermia may occur in men
Avoid pregnancy for 3-4 months after completing treatment
Avoid others with respiratory infections
Report signs of infection immediately
Monitor I and O
Monitor electrolytes (serum K+)
Avoid ETOH or other hepatotoxic substances
Avoid live virus vaccines (2 months after therapy)
Mustard Gas Derivative Prototype
Cyclophosphamide (Cytoxan)
Cyclophosphamide (Cytoxan) Routes and Onset?
PO/IV onset 7 days
Sxs Specific to Cyclophosphamide (Cytoxan)
Hematuria, impotence, sterility
Adverse Reaction Specific to Cyclophosphamide (Cytoxan)
Hemorrhagic cystitis
Life-threatening Reaction Specific to Cyclophosphamide (Cytoxan)
Cardio toxicity (high doses), hepatotoxicity (long-term)
Drug Interactions Specific to Cyclophosphamide (Cytoxan)
Decrease digoxin level
Prolonged leukopenia with thiazide diuretics
Potentiates cardiomyopathy with Adriamycin
Potentiates action and toxicity of allopurinol, probenicid, colchicine, AC
Toxicity increases if given with corticosteroids, phenytoin or sulfonamides
Nursing Considerations Specific to Cyclophosphamide (Cytoxan)
Assess for sxs of hematuria, polyuria, dysuria
Teach client to empty bladder every 2-3 hours
Increase fluid intake to 2-3 L/day to reduce risk of hemorrhagic cystitis
Monitor I and O
Take drug early in the day to prevent accumulation of drug in bladder at night
Drug is excreted in breast milk
Antitumor Antibiotic Prototype
Anthracyclines ex: doxorubicin (Adriamycin)
Doxorubicin (Adriamycin) Route and Onset
IV 7-10 days
Sxs Specific to Doxorubicin (Adriamycin)
IV reaction, potent vesicant may cause flare reaction, discolors urine pink-red for up to 48 hours, may cause radiation recall to previously radiated skin
Adverse Reactions Specific to Doxorubicin (Adriamycin)
Esophagitis, hyperpigmentation of nails, tongue and oral mucosa may darken (more often in African Americans)
Life-threatening Reactions Specific to Doxorubicin (Adriamycin)
Cardio toxicity, CHF
Contraindications Specific to Doxorubicin (Adriamycin)
Severe cardiac disease (check EF prior to starting), do not exceed lifetime does of 550 mg/m2 or 450 mg/m2 if prior radiation, hepatic impairment
What is Used with Doxorubicin (Adriamycin) to Help Prevent/Decrease Cardiac Damage?
Dextazoxane (Zinecard)
Drug Interactions Specific to Doxorubicin (Adriamycin)
Increased risk of cardiotoxicity with CA+ blockers, Taxol, mitomycin
Decreases phenytoin levels
Increased risk of hemorrhage and cardiotoxicity with Cytoxan
Retrovir may decrease effectiveness
Increased hepatoxicity with mercaptopurine
Green tea may enhance antitumor effect, use with caution w/ grape seed, garlic, and st. johns wort
Nursing Considerations Specific to Doxorubicin (Adriamycin)
Monitor IV site, severe tissue necrosis may occur 3-4 weeks after infiltration
Monitor cardiac status
Plant Alkaloid Prototype
Vincristine (Oncovin)
Vincristine (Oncovin) Route and Onset
IV 7 days
Sxs Specific to Vincristine (Oncovin)
Peripheral neuropathy, loss of DTR (deep tendon reflex)
Adverse Reactions Specific to Vincristine (Oncovin)
Hypotension, visual disturbances, ileus, SIADH, hyponatremia, severe local reaction with extravasation, fever
Life-threatening Reaction Specific to Vincristine (Oncovin)
Intestinal necrosis