A person with a genetic defect which results in the synthesis of an insufficient amount of the alpha chain of hemoglobin is said to have which disease? A) alpha thalassemia b) beta thalassemia c) pernicious anemia d) Crohn’s disease
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- A person with a genetic defect which results in the synthesis of an insufficient amount of the alpha chain of hemoglobin is said to have which disease? A) alpha thalassemia b) beta thalassemia c) pernicious anemia d) Crohn’s disease
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- In sickle cell anemia, hemoglobin forms long fibers as a result of a) Burying of non-polar amino acids b) Burying polar amino acids c) Exposing polar amino acids d) Electrostatic interaction between glutamate and non polar amino acidsWhich of the following is a FALSE statement regarding sickle cell anemia? a) the sickle cell trait provides protection against malaria b) sickle cell anemia is due to a point mutation in the gene encoding one of the hemoglobin polypeptides Oc) sickle cell anemia may result from a lack of vitamin C d) a sickle cell crisis may be triggered by hypoxic environmental conditions e) sickle cell hemoglobin causes red blood cells to be more prone to rupture27) All of the following laboratory values are consistent with an intravascular hemolytic anemia EXCEPT() A) increased haptoglobin B) Increased lactate dehydrogenase(LDH) C) Increased reticulocyte count D) Increased unconjugated bilirubin E) Increased urine hemosiderin
- Teardrop cells would most likely be associated with Question 5 options: A) Babesia infection B) homozygous beta-thalassemia C) pernicious anemia D) iron-loading anemiasWhich of the following are the causes of obstructive shock A)Spinal cord injury B)Pulmonary embolism C)Cardiac lemonade D)Tension pneumothorax E)HemorrhageHemoglobins that denature and precipitate within RBCs as Heinz bodies are: Question 1 options: A) Methemoglobinemias. B) Thalassemias. C) Unstable hemoglobins. D) Hemoglobin M.
- anemia can occur as a result of a deficiency in vitamin b6, folate, and/or A) riboflavin B) panthothenic acid C) thiamin D) vitamin b12Erythroblastosis fetalis is caused by a) the second exposure b) bacterial infection c) viral infection d) bad luck e) the mother is astrologically incompatible with the fater18. Malabsorption of B vitamins is common in patients with untreated celiac disease. Of which type of anemia are these individuals most at risk? A) Iron-deficiency anemia B) Hemolytic anemia C) Pernicious anemia Vitamin B-12 D Inflammation-associated anemia E) Aplastic anemia C
- Which condition enhances the release of oxygen from hemoglobin ? A) High blood viscosity B) Low temperature D) Low blood pHProgressive hemothorax does not include() A) Abnormal respiratory movement B) Progressive increase of intrapleural pressure C) Venous pressure increased, heart beat weak, arterial pressure decreased D) Mediastinal flutter during breathing E) The blood volume of thoracic drainage was more than 200 ml / h for 3 hoursThe sigmoidal, cooperative binding curve commonly observed for hemoglobin is a result of: a) competition between CO2 and O2 for heme binding. B) competition between heme and distal His for O2 binding c) competition between BPG and CO2 for binding at the central cavity site d) T to R transition Hemoglobin has a tendency to release its oxygen to the tissues because: a) in this region pH is high and O2 concentrations are low b) in this region both pH and O2 concentrations are low c) in this region both pH and O2 concentrations are high d) there is much BPG in this region Which statement about fetal hemoglobin is not true? A) fetal hemoglobin has gamma chains instead of beta chains b) fetal hemoglobin binds BPG less strongly than maternal hemoglobin c) fetal hemoglobin binds oxygen less strongly than maternal hemoglobin d) fetal hemoglobin binds oxygen more strongly than maternal hemoglobin Which process is most responsible for the sickling of cells seen in sickle…