Urine is the indicator to find out a person's illness - illustrate with three examples.
Answers
Answer:
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Explanation:
Answer:
he chemical examination of urine is most commonly carried out in the surgery or outpatient clinic, by a nurse, using commercially prepared test strips. These are narrow plastic strips that hold test pads, arranged in a row. The test pads have chemicals in them. When a strip is briefly, but completely, dipped into urine, the test pads absorb the urine and a chemical reaction changes the colour of the pad.
The nurse/biomedical scientist compares the colour change for each reaction pad to a colour chart (provided with the test strips) to determine the result for each test. Each reaction pad must be evaluated at the appropriate time. If too little time or too much time has passed since the reaction, the nurse/biomedical scientist may get incorrect results. To reduce these timing problems—and to eliminate variations in colour interpretation—instruments may be used to “read” the reaction colour on each test pad.
The most frequently performed chemical tests using reagent test strips are:
specific gravity
pH
protein
glucose
ketones
blood
leukocyte esterase
nitrite
bilirubin
urobilinogen
Some reagent test strips also have a test pad for ascorbic acid (vitamin C)