NURO 670 Midterm Exam Questions with Correct Answers

CBC components Correct Answer WBC, differential of WBC, RBC, Hgb, Hct, RBC indices, PLT WBC 5-10; what's high? what's low? Correct Answer leukocytosis >10.3 - -responding to inflam., trauma, stress (heat/exercise/cold), drugs (epinephrine, steroids), metabolic (thyroid storm, uremia, coma), leukemia leukopenia <4 viral infections, OVERWHELMING bacterial infection (septic shock), drugs, marrow disorders, metastatic disease granulocytes vs non-granulocytes; which are which? Correct Answer granulocytes -neutrophils 65-75% wbc -eosinophils 1-4% wbc -basophil 0.5-1% wbc non-granulocytes -lymphocytes -monocytes neutrophilia = ? Correct Answer acute bacterial infection = increase in % of neutrophils bands=? Correct Answer immature neutrophils; means bone marrow increasing in production, reaching into reserves eosinophils = ? Correct Answer allergic response, parasites/helminth infestation, productions of cytokine-limiting inflammation basophils = ? Correct Answer phagocytose stuff. has heparin, histamine, serotonin. lymphocytes =? Correct Answer 20-40% of WBC. T cells 60-88% of total lymphocytes (cell-mediated) B cells 10-15% of total lymphocytes (humoral) ANC - absolute neutrophil count Correct Answer (%bands + %neutrophils) x total WBC >1500 = ok, not neutropenic <500 = severely neutropenic absolute count = Correct Answer % of specific cell x total WBC metas =? Correct Answer immature bands; indicative of severe bone marrow stress