NURS 4526 Lecture Notes - Lecture 11: Squamous Cell Carcinoma, Peripherally Inserted Central Catheter, B-Cell Chronic Lymphocytic Leukemia
Document Summary
Group of more than 200 diseases chterized by uncontrolled and unregulated growth of cells. Occurs in ppl of all ages and all ethnicities. Nurses play a critical role in shaping attitudes and promoting behaviors that prevent the development of cancer or facilitate adjustment to living with cancer. Major dysfxns that present in proess of cancer are defective cellular proliferation (growth) & defective cellular differentiation. Doubling time = time it takes to double in size: stem cell theory proposes that the loss of intracellular control of proliferation results from mutation of stem cells; Dna is substituted or permanently rearranged: once mutated. Cell can die from damage or by initiating programmed cellular suicide (apoptosis) Can survive and pass on damage to daughter cells (potential to become malignant esp if progeny cells. Nurs4526 week 11 notes (cid:0: normal cell differentiation: fertilized ova w/potential to produce all differentiated cells in the body 1.
