AAB MT HEMATOLOGYUPGRADED QUESTIONS AND ANSWERS 2023/2024
What is hemoglobin composed of? -CORRECT ANSWER-4 heme, 4 iron, 4 globins Which embryonic hemoglobin is normally found in newborns -CORRECT ANSWER In the solubility test for hemoglobin S, what is the reagent responsible for the reduction What disorder does a defect in heme synthesis lead to? -CORRECT ANSWER replaces glutamic acid in the 6th position of the beta chain CORRECT ANSWER-sulfhemoglobin What laboratory testis used to confirm the specific diagnosis of sickle cell anemia - Which of the following hemoglobins is insoluble under lowered oxygen tensions? - CORRECT ANSWER-Hb-S Which of the following hemoglobins is NOT normally present in a normal adult - blood cell? -CORRECT ANSWER-to keep iron in the ferrous state Which hemoglobin derivative causes irreversible changes in teh red blood cells? - of the hemoglobin molecule? -CORRECT ANSWER-sodium dithionite What is the function of the enzyme methemoglobin-cytochrome C reductase in a red CORRECT ANSWER-methemoglobin What is the most abundant hemoglobin in a newborn? -CORRECT ANSWER-Hb-F CORRECT ANSWER-Hb-S porphyria Which hemoglobin has a 200 times greater binding capacity for the hemoglobin What product is formed when ferrous iron of hemoglobin is oxidized to the ferric state? - molecule than oxygen? -CORRECT ANSWER-carboxyhemoglobin What is the molecular structure of hemoglobin S? -CORRECT ANSWER-Valine Hb-F CORRECT ANSWER-hemoglobin electrophoresis In hemoglobin C, what replaces glutamic acid? -CORRECT ANSWER-lysine
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