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Hematology Final Exam CSU Bakersfield
Final Exam Questions CSU Bakersfield Campbell
119
Biology
Undergraduate 3
11/25/2012

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Term
In which pathway is Factor VII?
Definition
Extrinsic
Term
In which pathway is Factor XII?
Definition
Intrinsic
Term
In which pathway is Factor XI?
Definition
Intrinsic
Term
In which pathway is Factor IX?
Definition
Intrinsic
Term
In which pathway is Factor VIII?
Definition
Intrinsic
Term
In which pathway is Factor X?
Definition
both
Term
In which pathway is Factor V?
Definition
both
Term
In which pathway is Factor II?
Definition
Both
Term
In which pathway is Factor I?
Definition
both
Term
What is factor I and Ia?
Definition
Fibrinogen and Fibrin
Term
What is factor II and IIa?
Definition
Prothrombin and thrombin
Term
What coagulation factors are vitamin K dependent?
Definition
Factors II, VII, IX, X
Term
Which clotting factor is not measured by the PTT or PT test?
Definition
Factor XIII as it is fibrinase
Term
Which vitamin K dependent factor is measured by the PTT test
Definition
Term
What is Factor XIII?
Definition
fibrinase: in the clotting of blood thrombin catalyzes factor XIII into its active form (fibrinase) which causes fibrin to form a stable clot
Term
Which vitamin K dependent factor is not measured by the PTT test?
Definition
Factor VII as it is part of the Extrinsic path and PTT measures the intrinsic path.
Term
If a person has a circulating platelet count of 300,000, about how many platets would be available in storage?
Definition
about 100,000
1/3 of a persons circulating platelets are available in storage
Term
Where are most coagulation factors synthesized?
Definition
liver
Term
Which factor is unstable at room temperature?
Definition
Factor V
Term
Which factor is activated by contact with glass?
Definition
Factor XII
Term
Which factor is actually calcium?
Definition
Factor IV
Term
Which factor is present in both plasma and serum
Definition
Factor X
Term
Which factor has the highest concentration in blood?
Definition
Factor I
Term
Which enzyme degrades fibrin?
Definition
Plasmin
Term
How is a genetic deficiency of factor VIII inherited?
Definition
X-linked inheritence
Term
How many platelets does the normal Mgakayocyte produce?
Definition
2,000-4,000
Term
What are four conditions caused by abnormal clotting?
Definition
-heart attack
-stroke
-deep vein thrombosis
-pulmonary embolism
Term
What is not a condition caused by abnormal clotting?
Definition
hemophilia
Term
What is the effect of aspirin on platelets?
Definition
It inactivated the platelets
Term
How is the platelet precusore in the marrow easily recognized?
Definition
It is a huge polypoid cell
Term
What does a normal non-activated platelet look like?
Definition
2-4 micron spiculated cell
Term
How is the platelet similat to the red blood cell?
Definition
It has no nucleus in the mature form
Term
When do we see fibrin degradation products?
Definition
when plasmin acts on fibrin clots
Term
What causes pernicious anemia?
Definition
Lack of intrinsic factor (IF) which is necessary for the absorption of vitamin B12
Term
From where is folic acid acquired in the diet?
Definition
green leafy vegetable with stores lasting about six months/
Term
What are three characteristics of megaloblasic red cell changes?
Definition
- a decrease in the number of mitoses and larger cells
- mature red cells that are typically oval macrocyes
- fragile chromatin that easily breaks
Term
Methemolobin is unstable and it tends to precipitate out as which inclusion in the red cell?
Definition
heinz body
Term
Where does intravascular hemolysis take place?
Definition
in the blood vessels
Term
Extravascular hemolysis results in an increase in
Definition
blood haptoglobin
Term
Extravascular hemolysis results in a decrease in
Definition
- blood bilirubin
- urine bilirubin
- stool bilirubin
Term
Red cells with the inherited defect know as sperocytosis would most likely result in:
Definition
decreased red cell life span due to extravascular hemolysis of spherocytes (wrong shape detection by spleen)
Term
Of how many chains do Hemoglobin Barts consist?
Definition
4 gamma chains
Term
Arth the blood cell morphology seen in B12 deficiency the same as that seen in folate deficiency?
Definition
yes
Term
The pneumonic phrase:
Crawl Slow Fast Accelerate is used for what?
Definition
where the hemoglobin ends up on the electrophoresis. Hemoglobin A, as it moves the fastest, will be furthest away from the electrodes.
Term
On hemoglobin electrophoresis usine cellulose acestate, the fastes moving hemoglobin is:
Definition
Hemoglobin A
Term
What do the red blod cell indices MCH and MCHC indicate?
Definition
The color or chromia of red blood cells
Term
What would lead to intravascular hemolysis of red blood cells?
Definition
-an artificial heart valve
-malaria parasites
-marathon running on pavement
-burns
Term
What doas an increased reticulocyte count indicate?
Definition
-increased red cell production
-increased red cell turnover
Term
What would create an increase in protophorphyrin in the cell?
Definition
lead poinsoning
Term
Wat would result in microcytic hypochromic red cells?
Definition
iron deficiency caused by THALASSEMIA
Term
What would cause and increase in Hgb A2?
Definition
beta thalassemia
Term
What would cause the presence of Hgb Barts?
Definition
alpha thalassemia newborn
Term
What would cause the presence of Hgb H?
Definition
alpha thalassemia adult
Term
What would cause the absence of Hgb A?
Definition
Homozygous sickle cell anemia
Term
What would cause the presence of hexagonal crystals?
Definition
homozygous Hgb C
Term
Chromatin fragments within the mature red blood cell are known as:
Definition
Howell-jolly bodies
Term
what are Howell-jolly bodies?
Definition
fragments of non-functional nucleus (cluster -+ DNA)
Term
What are Heinz bodies?
Definition
denatured hemaglobin
Term
What are reticulocytes?
Definition
immature RBCs
Term
What are Dohle bodies
Definition
associated with neutrophils; bluish
Term
Where does the normal catabolism of aged red blood cells take place?
Definition
spleen
Term
In an inflammatory condition, from which organ is iron withheld or blocked from leaving?
Definition
spleen
Term
When are the megaloblastic changes of red blood cell precursors seen?
Definition
-B12 deficiency
-folate deficency
Term
What would cause megaloblastic changes of red blood cell precursors?
Definition
-B12 deficiency
-folate deficiency
Term
What is the precise cause of pernicious anemia?
Definition
Lack of intrinsic factor (IF) in the stomach cells
Term
What do Heinz bodies found in the red cells consist of?
Definition
denatured hemoglobin
Term
A patient has been brought to the ER with acute bleeding following an accident; if he is an otherwise healthy person, what woul the red blood cell morphology most likely be?
Definition
normocytic and normochromic
Term
What does the Schilling Test do?
Definition
Differenciates dietary B12 deficiency from pernicious anemia (lack of IF)
Term
What can one differenciat on the usual hemoglobin electrophoresis pattern?
Definition
-sickle cell disease from sickle cell trait
-Hgb C disease from Hgb C trait
-alpha thalassemia from beta thalassemia
Term
What are the hemoglobin conditions from worse to okay?
Definition
-Hgb SS
-Hgb SC
-Hgb SB
-Hgb CC
-Hgb AS
Term
What are three things that would result in polycythemia?
Definition
-smoking
-living at high altitude
-decrease in blood flow to the kidney
Term
What would not result in polycythemia?
Definition
leukemia
Term
What gives the reticulocyte a bluish colot on the Wright's stain?
Definition
RNA
Term
During the maturation stage of the neutrophil, what is the characteristic of the promyelocyte?
Definition
predominant primary granules
Term
During the maturation stage of the neutrophil, what is the characteristic of the myelocyte?
Definition
first cell with predominant secondary granules
Term
During the maturation stage of the neutrophil, what is the characteristic of the mature neutrophil?
Definition
a segmented nucleus
Term
During the maturation stage of the neutrophil, what is the characteristic of the myeloblast?
Definition
prominant nucleoli
Term
During the maturation stage of the neutrophil, what is the characteristic of the metamyelocyte?
Definition
a kidney bean shaped nucleus
Term
During the maturation stage of the neutrophil, which cell has the predominant primary granules?
Definition
promyelocyte
Term
During the maturation stage of the neutrophil, which cell is the first cell with predominant secondarty granules?
Definition
myelocyte
Term
During the maturation stage of the neutrophil, which cell has a prominant nucleoli
Definition
myeloblast
Term
During the maturation stage of the neutrophil, which cell has a kidney bean shaped nucleus?
Definition
metamyelocyte
Term
During the maturation stage of the neutrophil, which cell has a segmented nucleus?
Definition
mature neutrophil
Term
Which white blood cell is found in the greatest quantity in the adult?
Definition
segmented neutrophil
Term
Which white blood cell is found in the greatest quantity in the child?
Definition
lymphocyte
Term
What does a 'shift to the left' of the neutrophil line usually mean?
Definition
the presence of a bacterial infection
Term
what would be the most likely cause for a large increas in blood basophils?
Definition
chronic leukemia
Term
For what is the Leukocyte Alkaline Phosphatase (LAP) test used?
Definition
to differentiate lekemoid rxn form CML
Term
What is meant by leukemoid reaction?
Definition
a high powered reaction to a bacterial infection
Term
What are the characteristics of a leukemoid reaction?
Definition
-an increase in neutrophils
-an increase in immature neutrophils
-presence of severe bacterial infection
Term
In which cell is an auer rod seen?
Definition
myeloblast
Term
Acute lymphocytic leukemia is primaily seen in
Definition
young children
Term
What is a monocyte when it enters the tissues called?
Definition
macrophage
Term
Why are basophils sometime referred to as "suicide bags"?
Definition
they contain mediators of anaphylaxis
Term
Which leukemia has the greates life expectency?
Definition
Chronic Lymphocytic Leukemia (CLL)
Term
What happens to the quantity of neutrophils at the release of epinephrine?
Definition
double in numbe:r
Term
A patient with intesinal parasites may have an increas in:
Definition
eosinophils
Term
In which leukemia is the Philadelphia chromosome found?
Definition
CML
Term
During the maturation stage of the neutrophil, which cell has no cytoplasmic granules?
Definition
myeloblast
Term
What is the major source of enery in the mature RBC?
Definition
embden-meyerhof path
Term
What is the major source of energy in the nucleated RBC?
Definition
Krebs cycle
Term
What is the source of 2,3 DPG for the RBC?
Definition
Rappaport-Luebering path
Term
what is the source of H+ to reduce methemoglobin in the RBC?
Definition
methemoglobin reductase path
Term
what is teh source of reduced glutathione to neutralize oxidants in the blood?
Definition
hexose monophosphate shunt
Term
What is macrocytosis?
Definition
Large RBCs
Term
What is anisocytosis?
Definition
variation in size of RBCs
Term
What is poikilocytosis?
Definition
variation in shape of RBCs
Term
What is microcytosis?
Definition
small RBCs
Term
what is anisochromia?
Definition
variation in color of RBCs
Term
In the WBC, what are the drumsticks of nuclear material of the neutrophil?
Definition
barr bodies
Term
In the WBC, what are the red rod-like inclusions in the cytoplasm of the neutrophil?
Definition
auer-rods
Term
In the WBC, what is the light blue discoloration of the cytoplasm of the neutrophil?
Definition
dohle bodies (toxic reactions)
Term
In the WBC, what is associated with bacterial infection and can be seen in the neutrophil?
Definition
vacuolization
Term
In the WBC, what has a six-segmented nucleus in the neutrophil?
Definition
hyper-segmented cell
Term
What would happen to the platelet count in CML?
Definition
increase in number
Term
In CML, what would happen to the WBC count?
Definition
increase in number
Term
In CML, what would happen to the basophil count?
Definition
increase in number
Term
In CML, what would happen to the eosinophil count?
Definition
increase in number
Term
In CML, what would happen to the immature lymphocytes?
Definition
no change in number
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