NURSING ANM AND GNM

Detailed explanation-1: -A presumptive test is a chemical test which, by production of color or light, indicates the presence of a body fluid. It is typically more sensitive and less specific than a confirmatory test. A confirmatory test is a test that verifies the presence of a specific compound.

Detailed explanation-2: -Presumptive tests are not definitive and further confirmatory tests are always required. They are used extensively in forensic science. Examples are the Duquenois-Levine test for marijuana and Scott’s test for cocaine. In general analytical chemistry, presumptive tests are often called spot tests.

Detailed explanation-3: -Acid phosphatase test for semen. Cobalt thiocyanate test for cocaine. Duquenois-Levine reagent for cannabis. Kastle-Meyer test for blood. Malachite green test for blood. Marquis reagent for narcotics. Benzidine test for blood which changes from clear to blue in color with the presence of blood. More items