Oncology Flashcards
Review the most important oncology diseases.
What are the 3 main treatments for cancer?
- Chemotherapy
- Radiation
- Surgery
Why are tubes commonly seen with cancer clients?
Many cancer clients have had surgery to remove a tumor and will typically have some type of tube temporarily (and sometimes permanently):
- colostomy
- tracheostomy
- nephrostomy
- chest tubes
Review tubes.
Define:
Metastasis
When the cancer has moved from its original source to a different part of the body or system.
Define:
Benign neoplasm
A non-cancerous tumor.
How are many cancers diagnosed?
By using a scope and biopsying the area.
The client may also have a CT scan or MRI to look for a tumor. There are also some blood tests.
Risk factors:
Cancer
Focus on problems that cause gene mutation:
- smoking and excessive alcohol
- chemicals in the environment
- sun exposure and chronic skin irritation
- chronic inflammation
- obesity and poor diet
- increased age
- immunosuppressed
- radiation
- viral infections
How many stages of cancer are there?
There are 5 stages of cancer:
0, I, II, III, IV, V
The higher the number, the more severe the cancer.
What are the warning signs of cancer?
- change in bowel or urinary habits (especially bleeding)
- sores that don’t heal
- unusual bleeding or discharge
- lumps (in breasts)
- a change in a mole
- nagging cough or hoarseness
What are some common anti-neoplastic medications (chemo meds)?
- rituximab
- methotrexate
- anastrozole
Why are all chemotherapy meds considered “high alert meds”?
Because they have adverse effects of bleeding and infection.
LPNs cannot give chemotherapy.
What causes the many side effects of chemo meds?
Chemo meds kill cancer cells, but they also affect all tissue cells that are rapidly dividing.
This puts the client at a high risk of infection and bleeding.
Define:
Neutropenia
A low neutrophil count that indicates there is a high risk of infection.
What are the signs and symptoms of infection?
- increased temperature >100 F (38C) (or 1 degree over baseline)
- increased pain, swelling, and redness
- green/yellow/foul-smelling discharge
- pneumonia/flu/cold symptoms
Define:
Thrombocytopenia
A low platelet count that indicates there is a high risk of bleeding.
What are the signs and symptoms of bleeding?
- decreased platelets < 150,000 (< 20,000 is critical)
- petechiae: red dots on skin
- ecchymosis: bruising
- blood from any orifice (urine, stool, nose, gums)
- large drops in hemoglobin and hematocrit
What are the interventions for the adverse effect of chemotherapy: neutropenia?
Neutropenic precautions:
- private room
- no fresh fruits or flowers in room
- freshwater for drinking
- avoid ill people
- meticulous hand hygiene and wear gloves
- no live vaccines
- avoid invasive procedures
- fruits and vegetables need to be washed and cooked before eating
- assess for signs and symptoms of infection
What are the interventions for the adverse effect of chemotherapy: thrombocytopenia?
Bleeding precautions:
- prevent falls
- no straining (give stool softeners)
- no nail clippers (use a file)
- no straight edge razors (use electric)
- avoid shots
- soft toothbrush
What 2 medications increase the risk of bleeding and should be avoided with a client on bleeding precautions?
NSAIDs and aspirin
How long should pressure be applied for clients on bleeding precautions?
5 - 10 minutes
What is tumor lysis syndrome?
When cells get damaged from chemotherapy and uric acid is released in the bloodstream.
Client will need increased fluids to flush out kidneys and allopurinol to decrease uric acid.
What are the interventions for the side effect of chemotherapy: nausea/vomiting?
- give antiemetics before eating
- provide bland foods
What are the interventions for the side effect of chemotherapy: diarrhea?
- replace fluids
- monitor fluid and electrolyte balance
- give antidiarrheals
- avoid foods that are irritating to stomach (spicy, caffeine and fiber)
What are the interventions for the side effect of chemotherapy: stomatitis/mucositis?
- provide oral hygiene
- avoid alcohol mouth wash
- give nystatin to prevent oral candidiasis
- mild foods
- diet high in protein and calories
What are the interventions for the side effect of chemotherapy: constipation?
- fluids
- fiber
- walking
What are the interventions for the side effect of chemotherapy: alopecia (hair loss)?
- get fitted for wig before chemo starts
- headwraps
- be gentle on hair
What are the interventions for the side effect of chemotherapy: infertility?
- use a sperm bank
- use contraceptives
What is radiation therapy?
A type of cancer treatment that uses beams of intense energy to kill cancer cells.
What is the difference between external radiation and internal radiation?
- External radiation is when a beam is directed toward a client: the client is not radioactive.
- Internal radiation is when radiation is inserted into the client for a certain amount of time: the client is radioactive.
What are the 2 types of internal radiation?
- Sealed radiation
- Unsealed radiation
What is unsealed radiation?
Internal radiation that is given by IV, oral or placed in a body cavity.
Anything that is excreted is radioactive for 24 hours.
What is sealed radiation?
Internal radiation that is implanted into the client’s body.
Client is radioactive, but excretions are NOT radioactive. The client is no longer considered radioactive once the implant is removed.
What are the general side effects of radiation (regardless of where the radiation is directed at)?
Skin irritation and fatigue.
Radiation can damage skin cells.