After World War II, what factors accounted for the shift in leading causes of death in the United States from infectious diseases to chronic diseases?
In the post-war years, as a result of improvements in sanitation and the development of antibiotics and vaccines, the major causes of death had changed from infectious to chronic diseases, especially heart disease and cancer. Health departments recognized that they must now deal with the problems and prevalence of chronic diseases.
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What should be done in order to isolate the variable x on one side of an equation and the numbers on the other?
A) Carry out the opposite of the operation that appears on the same side of the equal sign as x. B) Cross multiply all the numbers on the same side of the equal sign as x. C) Divide by 100 the numbers located on the same side of the equal sign as x. D) Identify the common denominator of the numbers on the opposite side of the equal sign from x.
A patient at a mountain ski resort has notable shortness of breath. She denies any past medical history and takes no medications. After applying oxygen, you realize that the key to helping this patient improve is to:
a. descend to a lower altitude. b. administer a respiratory medication by a metered-dose inhaler. c. position her in a left lateral recumbent position. d. place her in a supine position with her legs elevated.
The right coronary artery extends from the aorta and branches into the posterior interventricular artery or the:
A) posterior ascending artery B) posterior descending artery C) inferior descending artery D) superior descending artery
The pain associated with angina is:
A. brought on by stress or exercise and relieved by rest. B. usually not precipitated by exercise. C. not relieved by rest. D. not relieved by the use of nitroglycerin.