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Why is iron not stored or transported in its free form? In what form(s) is it stored or transported in blood?

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Because free iron is toxic to ...

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List the most common causes of bleeding disorders.

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Platelet deficiency (thrombocy...

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When monocytes migrate into the interstitial spaces to fight infection, they change to a different type of cell called __________.

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Which of the following might trigger erythropoiesis?


A) decreased tissue demand for oxygen
B) moving to a lower altitude
C) an increased number of RBCs
D) hypoxia of EPO-producing cells

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The immediate response to blood vessel injury is clotting.

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A mismatch of blood types during a transfusion is dangerous because _________.


A) clotting factors in the donor's blood will cause unwanted clots known as thrombus
B) preformed antibodies in the recipient's blood will bind and clump (agglutinate) the donated cells
C) antibodies in the donor's plasma will attack and kill the recipient's healthy blood cells
D) white blood cells from the donor's blood cause inflammation

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Fred's blood was determined to be AB positive. What does this mean?


A) He can only receive blood from a donor who is AB positive.
B) His blood lacks Rh factor.
C) There are no antibodies to A, to B, or to Rh antigens in the plasma.
D) Antibodies to A and B are present in the red cells.

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Which blood type is generally called the universal donor?


A) AB positive
B) B negative
C) A positive
D) O negative

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If you centrifuge (spin) whole blood, you will find the red blood cells (erythrocytes) at the bottom of the tube and white blood cells atop them. This implies that_________ .


A) white blood cells are fewer in number than red blood cells
B) red blood cells are larger than white blood cells
C) white blood cells are smaller than red blood cells
D) red blood cells have a greater density than white blood cells

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Why are the two pathways of blood clotting referred to as the extrinsic and intrinsic pathways?

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The factors required to initia...

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When neither anti-A serum nor anti-B serum clot on a blood plate with donor blood, the blood is type_________ .


A) B
B) AB
C) A
D) O

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What is the buffy coat found in centrifuged whole blood?

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The buffy coat is a ...

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Why would there be cause for concern if a young pregnant mother is Rh-, her husband is Rh+, and this is their second child?

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If the mother was given RhoGAM before an...

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What determines whether blood is bright red or a dull, dark red?

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In bright red blood, oxygen is...

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What organ in the body regulates erythrocyte production?


A) liver
B) pancreas
C) kidney
D) brain

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A patient complains of no energy, a chronic sore throat, a low-grade fever, and is tired and achy. His doctor notes an enlarged spleen upon examination. What diagnosis would you expect and what definitive test would you request?

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The test would be a differential white b...

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Which is NOT true of leukocytes?


A) They account for less than 1% of total blood volume.
B) They move by amoeboid motion.
C) They all contain easily recognizable membrane-bound cytoplasmic granules.
D) They are the only formed elements that are true cells.

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Higher viscosity of blood will increase the amount of stress placed on the heart while it is pumping. Viscosity of blood is highest when _________.


A) hematocrit is highest
B) hemoglobin levels are lowest
C) plasma levels are highest
D) HbA1C levels are lowest

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Diapedesis is the process by which red blood cells move into tissue spaces from the interior of blood capillaries.

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When diagnosing an iron deficiency one of the first tests is a red blood cell count. Why is this so?

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Iron is mostly stored in hemoglobin of R...

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