NUR 239 - Exam 1Questions & Answers 100%accurate!
NUR 239 - Exam 1Questions & Answers What is the difference between signs and symptoms - ANSWER signs = objective, observable, measurable symptoms = subjective, what the pt tells you What are types of cellular adaptation - ANSWER atrophy hypertrophy hyperpasia metaplasia dysplasia what is atrophy & ex - ANSWER -cells get smaller -decreases the size of tissues/organs ex: immobile patients, aging, neuromuscular problems what is hypertrophy & ex - ANSWER -cells get larger -increase in size of tissues/organs from increased -workload on the organ ex: muscle mass from exercise, cardiomyopathy, compensatory due to loss what is hyperplasia & ex - ANSWER -increase in cell # -occurs in tissues w/ cells capable of mitosis -occurs in response to stimulus & ceases once stimulus is removed ex: hormone stim. of breast tissue during pregnancy, skin warts from growth factors of HPV, regeneration of liver after partial removal what is metaplasia & ex - ANSWER -replacement of cell type -happens in response to chronic irritation/inflammation -NOT a normal physiologic response ex: smoking that causes new cell types in larynx what is dysplasia & ex - ANSWER -cells disorganized in size, #, appearance -no purpose served - not truly "adaptive" -can revert to former structure or function and become cancerous 100%accurate!
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