Chemotaxis (from chemo- + taxis) is the movement of an organism in response to a chemical stimulus. Somatic cells, bacteria, and other single-cell or multicellular organisms direct their movements according to certain chemicals in their environment.
It will be good for up to six months, in the vacuum seal, if stored in the refrigerator. If frozen in the vacuum seal, it can last for about 1 year. Once the sample is removed from the vacuum seal, it should not remain at room temperature for more than 18 hours. It will keep in the refrigerator, unsealed, for 30 days.
Generally, the exact answer of how long can renal failure patients live without renal failure depends on the kidney function that they still have. If the person is passing a reasonable amount of urine, he may be able to survive a few weeks to over a month, otherwise he may survive only a few days to two weeks.