NURS 3220 Lecture Notes - Lecture 26: Hyperuricemia, Oxygen Therapy, Gout
Document Summary
Most common cancers: solid tumors of the breast, lung, prostate, colon, and rectum. Most of the cells are not in process of reproducing: low growth fraction and respond poorly to drugs. Drugs usually attack the dividing cells, not cells in a dormant state. Rarer cancers: lymphocytic leukemia, hodgkin"s disease, certain testicular cancers, high growth fraction and respond well to drugs. Cells within the tumor are growing and dividing rapidly. Chemotherapy agents attack cells during cell division. Rapidly diving cells, cancerous or not, are attacked by the chemotherapy. Basic principles of cancer chemotherapy drugs (cytotoxic) ses. Cancer: unregulated cellular proliferation including the ability to spread to various types of tissues within the body: difficult to kill/remove. Burrow into surrounding tissue using probes, hard to separate from normal cells. Newer methods can isolate cancerous cells from regular cells using precise removal (laser, robotics) eradicate only certain cells: radiation. Target cells in various reproductive phases and targeting energy.
