-
The matrix of blood is called:
C. plasma
-
In a centrifuged blood sample, the buffy coat between the formed elements and the plasma contains:
A. leukocytes and platelets
-
Which one of the following formed elements is the most abundant:
C. erythrocytes
-
Erythrocytes:
A. are anucleate
-
Normal whole blood contains how many grams of hemoglobin per 100 mL:
B. 12-18
-
Which of the following is not a type of red blood cell disorder?
E. leukemia
-
Excessive erythrocytes result in:
B. polycythemia
-
Which one of the following groups consist of granulocytes:
D. neutrophils, eosinophils and basophils
-
The most numerous white blood cells are the:
E. megakaryocytes
-
Platelets are fragments of multinucleate cells called:
B. megakaryocytes
-
Blood cell formations is called what? And occurs in red blone marrow.
A. hematopoiesis
-
The average functional lifespan of an RBC is:
B. 100-120 days
-
The hormone that regulates tge rate of erythrocyte production is called:
C. erthropoietin
-
Megakaryocytes pinch off anucleate fragments called:
A. platelets
-
The series of reactions that stop blood flow following a cut is called:
E. hemostasis
-
Which one of the following represents the proper sequence of hemostasis:
D. vascular spasm, platelet plug formation, coagulation
-
Blood normally clots in approximately:
A. 3-6 minutes
-
Prothrombin activatior coverts prothrombin to:
B. thrombin
-
What type of clot is formed during the process of hemostasis?
a. fibrinogen
b. fibrin
c. prothrombin
d. thrombin
e. thromboplastin
b. fibrin
-
A clot that breaks away from a vessel wall and circulates freely within the bloodstream is called a(n):
B. embolus
-
Which of the following is a blood clotting disorder:
A. hemophilia
-
Bleeding disorders often result from a lack of the following vitamins:
E. vitamin K
-
The ion essential for blood clotting is:
B. calcium
-
The organ largely responsible for the synthesis of clotting factor is the:
E. liver
-
Severe shock occurs with blood loss of:
B. over 30 %
-
A substance that stimulates the immune system to release antibodies:
B. antigen
-
The process whereby the binding of antibodies to antigens causes RBC's to clump is called:
A. aggulation
-
The most common type of blood in the U.S. population is:
E. O
-
ABO blood groups are based on the presence of:
D. A and B antigens
-
Compatibility testing for aggulation of donar RBC's by the recipients' serum is called:
D. cross matching
-
Anemias appearing in old age result from all the follong EXCEPT:
A. erythrocyte mutations
-
Transports oxygen bound to hemoglobin
erthrocytes
-
Active phagocytes that increase rapidly during acute infection
neutrophils
-
Kills parasitic worms
eosinophils
-
Contains histamine
basophils
-
Long-term "clean-up team"
monocytes
-
The blood type that possesses the A antigen only
Blood type B
-
The blood type known as the universal donor
Blood type O
-
The blood type known as the universal recipient
Blood type AB
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