Prelim Flashcards
(54 cards)
A practice of exposing a disease to various
types of radiation while also trying to
protect the unaffected parts of the patient’s
body from radiation exposure.
• Treatment of a disease particularly malignant
tumors or cancer using ionizing radiation
Radiation Therapy
General Objectives:
§ “
To deliver maximum dose to the tumor
while giving the minimum dose to the
surrounding normal tissues or cells
3 aims of radiation theraphy
Curative
Prophylactic
Palliative
– to prolong the life of the patient
and provide the best quality of life.
Palliative
– to prevent distant metastases
Prophylactic
Four Specific Modes of Treatment
Surgery
Radiotheraphy
Cytotoxic Drugs
Hormones treatment
2 classffication of treatment
Radical, Palliative
Multiple beam radiation)
the attempt, heroic, if necessary, to
remove all malignancy present
Radical
(simple) – if radical
treatment is thought to be
impossible, the aim is to relieve
symptoms
Palliative
Amount of dose given is dependent on:
Size, extent and type of tumor
4 Persons Involved in Radiation Therapy
Medical physicists
Radiation dosimetrist
Radiation therapist
Oncology Nurse
‒ Study of tumors
Oncology
medical specialty involving
the treatment of
cancerous lesions using
ionizing radiation.
Radiation Oncology ‒
Doctor of medicine
specializing in use of ionizing
radiation in the treatment of
disease and prescribes the
quantity of radiation and
determines the anatomic
region/s to be treated
Radiation Oncologist ‒
‒ doctor of
medicine specializing in
the study of tumors.
Oncologist
• is responsible for calibration and maintenance
of the radiation-producing equipment.
• The physicist also advises the physician about
dosage calculation and complex treatment
technique.
Medical physicists
• The person responsible for the calculation of the
proper radiation treatment dose who assist the
radiation oncologist in designing the individual
treatment plans
Medical dosimetrist
• Educating patient about potential radiation side effects and assisting patients with the management of the side effects.
Oncology Nurse
2 types of Radiation Therapy
- External Beam Radiation Therapy (EBRT)
- Brachytherapy
4 several variation of normal growth
Hypertrophy
Neoplasia
Hyperplasia
Metaplasia
of organ the as in heart muscle when the heart has to work against increase resistance
Hypertrophy
Replacement of cell type not normally present in an organ
Metaplasia
Cells are more numerous and more tightly packed with a high incidence of mitosis
Hyperplasia
means swelling and was originally use for enlargement due to injury, inflammation
Neoplasia
