A woman's first pregnancy is normal but her second pregnancy results in hemolytic disease of the newborn (HDN), or erythroblastosis fetalis. The second child needed a transfusion to completely replace the agglutinating blood. The mother is most likely type _____ and both children are mostlikely _____.
A. A, Rh-negative; B, Rh-positive
These are the least abundant formed elements.
E. basophils
These are the most abundant agranulocytes.
B. lymphocytes
The differential count of ______________ typically increases in response to bacterial infections.
E. neutrophils
___________ aid in the body's defense processes by secreting histamine (vasodilator) and heparin (anticoagulant).
B. Basophils
Leukopoiesis begins with the differentiation of
B. pluripotent stem cells (PPSCs).
Some lymphocytes can survive for
A. decades.
A total count above ____________ WBCs/μL is called leukocytosis.
A. 10,000
All these can cause leukopenia except
E. dehydration
Platelets do not secrete
A. thrombopoietin.
The cessation of bleeding is specifically called
C. hemostasis.
Thromboplastin
A. initiates the extrinsic pathway of coagulation.
When a clot is no longer needed, fibrin is dissolved by
C. plasmin.
All of these prevent the spontaneous formation of a clot except
C. the presence of tissue thromboplastin.
Platelets release ____________, a chemical vasoconstrictor that contributes to the vascular spasm.
A. serotonin
The structural framework of the blood clot is formed by
C. a fibrin polymer.
Most strokes and heart attacks are caused by the abnormal clotting of blood in an unbroken vessel. Moreover, a piece of the ____________ (clot) may break loose and begin to travel in the bloodstream as a(n) ______________.
C. thrombus; embolus
__________________ participates in the extrinsic mechanism only.
