NURS 371 Lecture 23: Hematology
Document Summary
Subjective: health history- alcohol use, previous dx, surgeries, medications- vitamins, herbal products, chemo, antiretroviral agents, family history- bleeding disorders, sickle cell, von wildebrand"s disease. Objective: skin, lymph nodes, spleen, liver, vitals, neuro, musculo. Liver & spleen- enlarged with rbc increase such as leukemia or polycythemia. Wbcs: provides clues to the etiology of the problem: 4000-11000. Wbc differential: identifies the % of different types of wbc in circulating blood. Wbc can be normal overall, but one type can be higher/lower than normal. Transports o2 and co2 to and from body tissues. Surface of rbc has antigens which trigger immune responses. Body makes billions of new rbc daily: females: 3. 8 to 5. 1 million/ul, males: 4. 3 to 5. 7 million/ul. Rbc increased if dehydrated bc of concentration of rbc since not as much free fluid. Not increased # of rbc, but rather concentration. Seen in resp problems bc prolonged hypoxemia since. Hemoglobin: contains heme which is the main component of rbc.
