The vessels that connect the arteries and veins are called the:
A. capillaries.
B. valves.
C. arterioles.
D. venules.
Answer: A
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A) destructive B) chronic spasm C) protective D) acute
The three primary components of the cardiovascular system are best described as:
A) Arteries, veins, and capillaries B) Heart, lungs, and blood vessels C) Heart, blood vessels, and blood D) Heart, blood vessels, and brainstem
What causes allergic transfusion reactions?
a. Patient antibodies that are directed against antigens present on the transfused red blood cells. b. Patient antibodies to non-ABO red blood cell antigens. c. Preformed plasma antibodies that react with protein-based allergens. d. Pulmonary infiltrates caused by antibodies to HLA antigens.
A patient recovering from thrombus is undergoing warfarin treatment to prevent formation of any future blood clots. What is the overall level of risk of complications, comorbidity, or mortality?
A. Minimal B. Low C. Moderate D. High