Outline three "propositions" of epidemiological transition that Orman (1971 ) characterized
1 ) Mortality and fertility rates explain most of the dynamics in population change.
2 ) Over periods of time, chronic "degenerative" diseases displace infectious disease pandemics as major causes of mortality, and the West and elsewhere have now left the "age of pestilence and famine" and entered the "age of degenerative and man-made disease".
3 ) Improvements in mortality patterns have favored infants, children, and women.
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Which of the following describes the distribution of lymphocytes within the body?
a. 75% exist in peripheral blood, 25% in lymph nodes and spleen b. 50% exist in the circulating pool, 50% in the marginating pool c. 95% are found in the lymph nodes and spleen, 5% in the peripheral blood d. 80% are short-lived, 20% are long lived
Which of the following best describes the physical concept of pressure?
a. Weight ÷ unit volume b. Mass ? acceleration c. Force ? distance d. Force ÷ unit area
Approximately what percentage of urine is water?
A) 50% B) 75% C) 80% D) 95%
When should sponges be removed from the room?
a. After they have been counted and bagged b. Not until the patient is out of the room c. After the first correct count d. When there becomes too many