Answer: Difference between presumptive test and confirmation test
Explanation:
A presumption test or screening is a test to detect diseases in early stages and shows the prevalence of a disease in the population, it is performed in asymptomatic people, which is classified as having or not having the disease that is sought, the objective of these tests are to reduce morbidity-mortality in the study population, confirmatory tests or diagnostic tests are those that confirm or rule out the disease and are performed after a screening test, an example is HIV-AIDS tests, in which the screening test is performed on the population with risky sexual contacts called the rapid test, ELISA and if it is positive, the Western Blot confirmation test is performed.
Answer:
A fever can be acute if it lasts for under 7 days, subacute if it lasts for up to 14 days, and chronic or persistent if it lasts for over 14 days.
I think B. enterogastric reflex: One of three extrinsic reflexes of the gastrointestinal tract that is stimulated by the presence of acid levels in the duodenum or in the stomach that cause the release of gastrin from the G cells in the antrum of the stomach.