Hematology ASCP Exam Questions And Answers

Hematology ASCP Exam Questions And Answers Bone marrow and Peripheral blood - ANS Growth factors that stimulate cell line maturation are: Locations of active marrow in adults - ANS Flat bones What conditions are associated with increased storage of iron - ANS Hemosiderosis Hemochromatosis Transferrin - ANS iron transport protein Iron storage forms: - ANS ferritin and hemosiderin Porphyrias - ANS diseases that result from deficiencies of any of several enzymes required to make heme Heme precursor orders Memory: *DELTA, POUR YOUR COP PROTO* a cup of *HEME* - ANS Delta-amniolevolini acid breaks down into Porphobilinogen breaks down into Uroporphyrinogen breaks down into Coproporphyrinogen breaks down into Protoporphyrin breaks down into Heme + Globin hemoglobin-oxygen dissociation curve Memory: Shift Right wont hold tight, Shift left No wont let go - ANS Shift to the left- O2 NOT released to tissue adequately Shift to the right- O2 released to tissue more easily Left Shift - ANS Decreased CO2 Increased pH Right Shift - ANS increased number of mature neutrophils Increased CO2 Decreased pH Increased 2,3 DPG Fetal hemoglobin chains - ANS HGB F Adult Hemoglobin Chain - ANS HGB A EDTA (ethylenediaminetetraacetic acid) - ANS Chelates Calcium Heparin (anticoagulant) - ANS Anti-thrombin agent Hemoglobin Testing errors - ANS Lipemia/Icterus High WBC count Resisting Hemoglobin Falure to seal tube, incorrect reading, excess EDTA resulting in RBC shrinkiage are all errors for: - ANS HCT Hematocrit - ANS the ratio of the volume of red blood cells to the total volume of blood Calculated by MCV and RBC Manual Cell Count Formula - ANS # cells counted X 1/Tot. Vol X Dilution factor MCV - ANS mean cell volume 80-100 fl Increase in Macrocytes MCH - ANS mean corpuscular hemoglobin 28-32 pg Varies w/ hgb content and cell size