The drug heparin acts in hemostasis by which processes?
a. Inhibiting thrombin and antithrombin III (AT-III)
b. Preventing the conversion of prothrombin to thrombin
c. Shortening the fibrin strands to retract the blood clot
d. Degrading the fibrin within blood clots
Ans: a. Inhibiting thrombin and antithrombin III (AT-III)
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A nurse identifies an unusual incidence of acute lymphocytic leukemia (ALL) in school-age children in a nearby community and conducts a study to examine exposure to a variety of water pollutants from a local industry. This is an example of a
a. phenomenological study. b. qualitative study. c. prospective cohort study. d. retrospective cohort study.
The behavioral approach has been validated by a wide range of studies
a. True b. False
The _____ _____ allows blood to bypass the lungs, flowing from the pulmonary artery to the aorta.
Fill in the blank(s) with the appropriate word(s).
A patient with severe diarrhea develops an imbalance of potassium. The nurse expects the client to exhibit which of the following symptoms?
a. Shallow respirations, lethargy, nausea b. Kussmaul's breathing, thirst, furrowed tongue c. Apathy, weakness, positive Chvostek's sign d. Pitting edema, confusion, bounding pulse