ASCP BOC Hematology| 81 QUESTIONS| WITH COMPLETE SOLUTIONS

protoporphyrin Fe Transport protein Correct Answer: Transferrin Major Fe storage form Correct Answer: Ferritin H2O insoluble Fe storage form (long-term) Correct Answer: Hemosiderin Excess iron that is stored in tissues and body organs can lead to ____________ and ____________ Correct Answer: hemosiderosis and hemochromatosis (organ damage) What are the heme precursors (in order) Correct Answer: Delta, Porphobilinogen, UR, COP, PROTO EDTA chelates ____ Correct Answer: Calcium What are some sources of error for hemoglobin? Correct Answer: icterus, lipemia, hemolysis, increased white count What are the hemoglobin reference ranges for men and women? Correct Answer: men: 16 +- 2 g/dL women: 14 +- 2 g/dL What happens in methemoglobin? Correct Answer: Fe2+ is oxidized to Fe3+, cannot bind O2, is brown Measures packed cell volume in a percent Correct Answer: hematocrit What are some sources of error from a calculated hematocrit? Correct Answer: cold agglutinins, high white count What are the hematocrit reference ranges for men and women? Correct Answer: male: 47 +- 5 % women: 42 +- 5% What is the calculation for MCV? Correct Answer: (HCT/RBC) x 10 What is the calculation for MCH? Correct Answer: (HB/RBC) x 10 What is the calculation for MCHC? Correct Answer: (HB/HCT) x 100