Treatment for polycythemia vera involves which of the following?

a. Therapeutic phlebotomy and radioactive phosphorus
b. Restoration of blood volume by plasma expanders
c. Administration of cyanocobalamin
d. Blood transfusions


Ans: a. Therapeutic phlebotomy and radioactive phosphorus

Nursing

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A researcher records the weight of subjects in a study as: (1) normal for height. (2) overweight for height. (3) underweight for height. A nominal level of measurement is used. Which of the following levels of measurement could also be used?

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The highest level of evidence is known to be provided by what?

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